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Hu S, Qiao J, Gu G, Xue QK, Zhang D. Vortex entropy and superconducting fluctuations in ultrathin underdoped Bi 2Sr 2CaCu 2O 8+x superconductor. Nat Commun 2024; 15:4818. [PMID: 38844439 PMCID: PMC11156657 DOI: 10.1038/s41467-024-48899-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 05/15/2024] [Indexed: 06/09/2024] Open
Abstract
Vortices in superconductors can help identify emergent phenomena but certain fundamental aspects of vortices, such as their entropy, remain poorly understood. Here, we study the vortex entropy in underdoped Bi2Sr2CaCu2O8+x by measuring both magneto-resistivity and Nernst effect on ultrathin flakes (≤2 unit-cell). We extract the London penetration depth from the magneto-transport measurements on samples with different doping levels. It reveals that the superfluid phase stiffness ρs scales linearly with the superconducting transition temperature Tc, down to the extremely underdoped case. On the same batch of ultrathin flakes, we measure the Nernst effect via on-chip thermometry. Together, we obtain the vortex entropy and find that it decays exponentially with Tc or ρs. We further analyze the Nernst signal above Tc in the framework of Gaussian superconducting fluctuations. The combination of electrical and thermoelectric measurements in the two-dimensional limit provides fresh insight into high temperature superconductivity.
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Affiliation(s)
- Shuxu Hu
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing, China
| | - Jiabin Qiao
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing, China.
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement, School of Physics, Beijing Institute of Technology, Beijing, China.
- Beijing Academy of Quantum Information Sciences, Beijing, China.
| | - Genda Gu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA
| | - Qi-Kun Xue
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing, China.
- Beijing Academy of Quantum Information Sciences, Beijing, China.
- Southern University of Science and Technology, Shenzhen, China.
- Frontier Science Center for Quantum Information, Beijing, China.
| | - Ding Zhang
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing, China.
- Beijing Academy of Quantum Information Sciences, Beijing, China.
- Frontier Science Center for Quantum Information, Beijing, China.
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, Japan.
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Seki K, Kubo T, Ye N, Shimizu T. Quantifying the spreading resistance of an anisotropic thin film conductor. Sci Rep 2020; 10:10633. [PMID: 32606336 PMCID: PMC7326967 DOI: 10.1038/s41598-020-66739-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/26/2020] [Indexed: 11/29/2022] Open
Abstract
Recently, highly anisotropic conductors, such as multilayer graphene, have been attracting much attention. The local resistivity can be determined by measuring the contact resistance; however, the theoretical expressions of contact resistance have been developed for isotropic slabs but have not been well developed for highly anisotropic film conductors. We obtain theoretical expressions of the spreading resistance below the circular contact for a highly anisotropic film on a bulk slab. The film spreading resistance of isotropic conductors deviates from the bulk spreading resistance when the film thickness is smaller than the contact radius. Nevertheless, the spreading resistance of anisotropic conducting films can be approximated by that of the bulk slabs even when the film thickness is smaller than the contact radius if the in-plane electrical conductivity is larger than the out-of-plane electrical conductivity. Owing to the high in-plane conductivity, the spreading resistance of anisotropic bulk conductors can be lowered from that predicted by the Holm's equation obtained using the out-of-plane conductivity and the contact radius. We show that these characteristics are beneficial to use the highly anisotropic film as a cover layer when the in-plane conductivity of the film is high and the conductivity of the base slab is low.
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Affiliation(s)
- Kazuhiko Seki
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan.
| | - Toshitaka Kubo
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
| | - Nan Ye
- Yazaki Corporation 1500 Mishuku, Susono-city, Shizuoka, 410-1194, Japan
| | - Tetsuo Shimizu
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
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3
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Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals. Sci Rep 2016; 6:31824. [PMID: 27534898 PMCID: PMC4989151 DOI: 10.1038/srep31824] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 07/27/2016] [Indexed: 11/17/2022] Open
Abstract
In low-dimensional electron systems, charge density waves (CDW) and superconductivity are two of the most fundamental collective quantum phenomena. For all known quasi-two-dimensional superconductors, the origin and exact boundary of the electronic orderings and superconductivity are still attractive problems. Through transport and thermodynamic measurements, we report on the field-temperature phase diagram in 2H-TaS2 single crystals. We show that the superconducting transition temperature (Tc) increases by one order of magnitude from temperatures at 0.98 K up to 9.15 K at 8.7 GPa when the Tc becomes very sharp. Additionally, the effects of 8.7 GPa illustrate a suppression of the CDW ground state, with critically small Fermi surfaces. Below the Tc the lattice of magnetic flux lines melts from a solid-like state to a broad vortex liquid phase region. Our measurements indicate an unconventional s-wave-like picture with two energy gaps evidencing its multi-band nature.
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Lin SZ. Ground state, collective mode, phase soliton and vortex in multiband superconductors. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:493202. [PMID: 25398159 DOI: 10.1088/0953-8984/26/49/493202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This article reviews theoretical and experimental work on the novel physics in multiband superconductors. Multiband superconductors are characterized by multiple superconducting energy gaps in different bands with interaction between Cooper pairs in these bands. The discovery of prominent multiband superconductors MgB2 and later iron-based superconductors, has triggered enormous interest in multiband superconductors. The most recently discovered superconductors exhibit multiband features. The multiband superconductors possess novel properties that are not shared with their single-band counterpart. Examples include: the time-reversal symmetry broken state in multiband superconductors with frustrated interband couplings; the collective oscillation of number of Cooper pairs between different bands, known as the Leggett mode; and the phase soliton and fractional vortex, which are the main focus of this review. This review presents a survey of a wide range of theoretical exploratory and experimental investigations of novel physics in multiband superconductors. A vast amount of information derived from these studies is shown to highlight unusual and unique properties of multiband superconductors and to reveal the challenges and opportunities in the research on the multiband superconductivity.
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Affiliation(s)
- Shi-Zeng Lin
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
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Castellan JP, Rosenkranz S, Osborn R, Li Q, Gray KE, Luo X, Welp U, Karapetrov G, Ruff JPC, van Wezel J. Chiral phase transition in charge ordered 1T-TiSe2. PHYSICAL REVIEW LETTERS 2013; 110:196404. [PMID: 23705726 DOI: 10.1103/physrevlett.110.196404] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 02/22/2013] [Indexed: 05/02/2023]
Abstract
It was recently discovered that the low-temperature, charge-ordered phase of 1T-TiSe(2) has a chiral character. This unexpected chirality in a system described by a scalar order parameter could be explained in a model where the emergence of relative phase shifts between three charge density wave components breaks the inversion symmetry of the lattice. Here, we present experimental evidence for the sequence of phase transitions predicted by that theory, going from disorder to nonchiral and finally to chiral charge order. Employing x-ray diffraction, specific heat, and electrical transport measurements, we find that a novel phase transition occurs ~7 K below the main charge ordering transition in TiSe(2), in agreement with the predicted hierarchy of charge-ordered phases.
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Affiliation(s)
- John-Paul Castellan
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
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6
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Lin SZ, Bulaevskii LN. Dissociation transition of a composite lattice of magnetic vortices in the flux-flow regime of two-band superconductors. PHYSICAL REVIEW LETTERS 2013; 110:087003. [PMID: 23473190 DOI: 10.1103/physrevlett.110.087003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Indexed: 06/01/2023]
Abstract
In multiband superconductors, each superconducting condensate supports vortices with fractional quantum flux. In the ground state, vortices in different bands are spatially bounded together to form a composite vortex, carrying one quantum flux Φ(0). Here we predict dissociation of the composite vortices lattice in the flux flow state due to the disparity of the vortex viscosity and flux of the vortex in different bands. For a small driving current, composite vortices start to deform, but the constituting vortices in different bands move with the same velocity. For a large current, composite vortices dissociate and vortices in different bands move with different velocities. The dissociation transition shows up as an increase of flux flow resistivity. In the dissociated phase, Shapiro steps are developed when an ac current is superimposed with a dc current.
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Affiliation(s)
- Shi-Zeng Lin
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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Bridoux G, Nieva G, de la Cruz F. Phase-coherence effects in vortex transport entropy. PHYSICAL REVIEW LETTERS 2008; 101:117002. [PMID: 18851317 DOI: 10.1103/physrevlett.101.117002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Indexed: 05/26/2023]
Abstract
Nernst and electrical resistivity measurements in superconducting YBa2Cu3O7-delta and Bi2Sr2CaCu2O8+delta with and without columnar defects show a distinctive thermodynamics of the respective liquid vortex matter. At a field-dependent high temperature region in the H-T phase diagram, the Nernst signal is independent of structural defects in both materials. At lower temperatures, in YBa2Cu3O7-delta, defects contribute only to the vortex mobility, and the transport entropy is that of a system of vortex lines. The transition to lower temperatures in Bi2Sr2CaCu2O8+delta has a different origin; the maximum in the Nernst signal when decreasing temperature is not associated with transport properties but with the entropy behavior of pancake vortices in the presence of structural defects.
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Affiliation(s)
- G Bridoux
- Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, Avenida E. Bustillo 9500, R84002AGP S. C. de Bariloche, Argentina.
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8
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la Cruz FD, López D, Nieva G. Thermally induced change in the vortex dimensionality of YBa2Cu3O7 single crystals. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01418639408240250] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F. de la Cruz
- a Comisión Nacional de Energía Atómica, Centro Atómico Bariloche , 8400 , S. C. de Bariloche , Argentina
| | - D. López
- a Comisión Nacional de Energía Atómica, Centro Atómico Bariloche , 8400 , S. C. de Bariloche , Argentina
| | - G. Nieva
- a Comisión Nacional de Energía Atómica, Centro Atómico Bariloche , 8400 , S. C. de Bariloche , Argentina
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Bourlon B, Miko C, Forró L, Glattli DC, Bachtold A. Determination of the intershell conductance in multiwalled carbon nanotubes. PHYSICAL REVIEW LETTERS 2004; 93:176806. [PMID: 15525107 DOI: 10.1103/physrevlett.93.176806] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2004] [Indexed: 05/24/2023]
Abstract
We report on the intershell electron transport in multiwalled carbon nanotubes (MWNTs). To do this, local and nonlocal four-point measurements are used to study the current path through the different shells of a MWNT. For short electrode separations less, similar 1 mum the current mainly flows through the two outer shells, described by a resistive transmission line with an intershell conductance per length of approximately (10 kOmega)(-1)/microm. The intershell transport is tunnel type and the transmission is consistent with the estimate based on the overlap between pi orbitals of neighboring shells.
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Affiliation(s)
- B Bourlon
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris 05, France
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10
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Banerjee SS, Goldberg S, Soibel A, Myasoedov Y, Rappaport M, Zeldov E, de la Cruz F, van der Beek CJ, Konczykowski M, Tamegai T, Vinokur VM. Vortex nanoliquid in high-temperature superconductors. PHYSICAL REVIEW LETTERS 2004; 93:097002. [PMID: 15447129 DOI: 10.1103/physrevlett.93.097002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2004] [Indexed: 05/24/2023]
Abstract
Using a differential magneto-optical technique to visualize the flow of transport currents, we reveal a new delocalization line within the reversible vortex liquid region in the presence of a low density of columnar defects. This line separates a homogeneous vortex liquid, in which all the vortices are delocalized, from a heterogeneous "nanoliquid" phase, in which interconnected nanodroplets of vortex liquid are caged in the pores of a solid skeleton formed by vortices pinned on columnar defects. The nanoliquid phase displays high correlation along the columnar defects but no transverse critical current.
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Affiliation(s)
- S S Banerjee
- Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel
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Grigorieva IV, Geim AK, Dubonos SV, Novoselov KS, Vodolazov DY, Peeters FM, Kes PH, Hesselberth M. Long-range nonlocal flow of vortices in narrow superconducting channels. PHYSICAL REVIEW LETTERS 2004; 92:237001. [PMID: 15245187 DOI: 10.1103/physrevlett.92.237001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Indexed: 05/24/2023]
Abstract
We report a new nonlocal effect in vortex matter, where an electric current confined to a small region of a long and sufficiently narrow superconducting wire causes vortex flow at distances hundreds of intervortex separations away. The observed remote traffic of vortices is attributed to a very efficient transfer of a local strain through the one-dimensional vortex lattice (VL), even in the presence of disorder. We also observe mesoscopic fluctuations in the nonlocal vortex flow, which arise due to "traffic jams" when vortex arrangements do not match a local geometry of a superconducting channel.
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Affiliation(s)
- I V Grigorieva
- Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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12
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Enomoto K, Yamaura JI, Miyazaki A, Enoki T. Electronic and Magnetic Properties of Organic Conductors (DMET)2MBr4(M = Fe, Ga). BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.945] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Bou-Diab M, Dodgson MJ, Blatter G. Vortex collisions: crossing or recombination? PHYSICAL REVIEW LETTERS 2001; 86:5132-5135. [PMID: 11384439 DOI: 10.1103/physrevlett.86.5132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2000] [Indexed: 05/23/2023]
Abstract
We investigate the collision of two vortex lines moving with viscous dynamics and driven towards each other by an applied current. Using London theory in the approach phase we observe a nontrivial vortex conformation producing antiparallel segments; their attractive interaction triggers a violent collision. The collision region is analyzed using the time-dependent Ginzburg-Landau equation. While we find that vortices will always recombine through the exchange of segments, a crossing channel appears naturally through a double collision process.
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Affiliation(s)
- M Bou-Diab
- Theoretische Physik, ETH-Hönggerberg, CH-8093 Zürich, Switzerland
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14
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Rydh A, Rapp O. Strong vortex liquid correlation from multiterminal measurements on untwinned YBa2Cu3O(7-delta) single crystals. PHYSICAL REVIEW LETTERS 2001; 86:1873-1876. [PMID: 11290270 DOI: 10.1103/physrevlett.86.1873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2000] [Indexed: 05/23/2023]
Abstract
Multiterminal transport measurements indicating a strongly correlated vortex liquid above the first order melting transition in untwinned YBa2Cu3O(7--delta) single crystals are presented. The correlation is found to be surprisingly stable for different weak variations of point disorder. We investigate the differences between intervortex and intravortex correlations in different contact geometries. The results are in agreement with the local conductivity model, with zero resistivity along straight vortex line segments.
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Affiliation(s)
- A Rydh
- Solid State Physics, Department of Physics, Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
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15
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Olson CJ, Zimányi GT, Kolton AB, Grønbech-Jensen N. Static and dynamic coupling transitions of vortex lattices in disordered anisotropic superconductors. PHYSICAL REVIEW LETTERS 2000; 85:5416-5419. [PMID: 11136010 DOI: 10.1103/physrevlett.85.5416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2000] [Indexed: 05/23/2023]
Abstract
We use three-dimensional molecular dynamics simulations of magnetically interacting pancake vortices to study vortex matter in disordered, highly anisotropic materials such as BSCCO. We observe a sharp 3D-2D transition from vortex lines to decoupled pancakes as a function of relative interlayer coupling strength, with an accompanying large increase in the critical current reminiscent of a second peak effect. We find that decoupled pancakes, when driven, simultaneously recouple and order into a crystalline-like state at high drives. We construct a dynamic phase diagram and show that the dynamic recoupling transition is associated with a double peak in dV/dI.
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Affiliation(s)
- C J Olson
- Department of Physics, University of California, Davis, California 95616, USA
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16
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Fuchs DT, Zeldov E, Rappaport M, Tamegai T, Ooi S, Shtrikman H. Transport properties governed by surface barriers in Bi2Sr2CaCu2O8. Nature 1998. [DOI: 10.1038/34879] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Koshelev AE. Plasma Resonance and Remaining Josephson Coupling in the "Decoupled Vortex Liquid Phase" in Layered Superconductors. PHYSICAL REVIEW LETTERS 1996; 77:3901-3904. [PMID: 10062337 DOI: 10.1103/physrevlett.77.3901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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18
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Ashkenazy VD, Jung G, Shapiro BY. Cross correlation of thermal flux noise in layered superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:9428-9435. [PMID: 9984680 DOI: 10.1103/physrevb.54.9428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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19
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Fukumoto Y, Zhu Y, Li Q, Wiesmann HJ, Suenaga M, Kaneko T, Sato K, Shibutani K, Hase T, Hayashi S, Simon C. Dimensionality and pinning of magnetic vortices in the c-axis aligned Bi2Sr2CaCu2O8+ delta and (Bi,Pb)2Sr2Ca2Cu3O10/Ag tapes irradiated by 5.8-GeV Pb ions. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:10210-10217. [PMID: 9984762 DOI: 10.1103/physrevb.54.10210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ando Y, Boebinger GS, Passner A, Wang NL, Geibel C, Steglich F. Metallic In-Plane and Divergent Out-of-Plane Resistivity of a High-Tc Cuprate in the Zero-Temperature Limit. PHYSICAL REVIEW LETTERS 1996; 77:2065-2068. [PMID: 10061848 DOI: 10.1103/physrevlett.77.2065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Doyle RA, Seow WS, Yan Y, Campbell AM, Mochiku T, Kadowaki K, Wirth G. Local Electrodynamics in Heavy Ion Irradiated Bi2Sr2CaCu 2O8+ delta. PHYSICAL REVIEW LETTERS 1996; 77:1155-1158. [PMID: 10063004 DOI: 10.1103/physrevlett.77.1155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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22
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Wan YM, Lemberger TR, Hebboul SE, Garland JC. Transport properties of high-Tc Bi2Sr2CaCu2O8+ delta crystals near the superconducting transition. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:3602-3609. [PMID: 9986266 DOI: 10.1103/physrevb.54.3602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Fuchs DT, Zeldov E, Majer D, Doyle RA, Tamegai T, Ooi S, Konczykowski M. Simultaneous resistivity onset and first-order vortex-lattice phase transition in Bi2Sr2CaCu2O8. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R796-R799. [PMID: 9985437 DOI: 10.1103/physrevb.54.r796] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sun Y, Xu G, Du J, Zhou Y, Zeng R, Fu X, Hua P, Zhang Y. Observation of a three-dimensional vortex-line liquid in a highly c-axis-oriented (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tape. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:1382-1385. [PMID: 9985410 DOI: 10.1103/physrevb.54.1382] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Wu CJ, Tseng TY. Microwave response of superconducting platelet crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:488-496. [PMID: 9984285 DOI: 10.1103/physrevb.54.488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Seow WS, Doyle RA, Campbell AM, Balakrishnan G, Paul DM, Kadowaki K, Wirth G. Influence of columnar defects on vortex dynamics in Bi2Sr2CaCu2O8 from out-of-plane and flux transformer transport measurements. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:14611-14620. [PMID: 9983262 DOI: 10.1103/physrevb.53.14611] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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27
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Taniguchi H, Sato H, Nakazawa Y, Kanoda K. Highly anisotropic superconductivity in the organic conductor alpha -(BEDT-TTF)2NH4Hg(SCN)4. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:R8879-R8882. [PMID: 9982475 DOI: 10.1103/physrevb.53.r8879] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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28
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Rastogi A, Sudershan YS, Bhat SV, Grover AK, Yamaguchi Y, Oka K, Nishihara Y. Nonresonant microwave absorption study of intrinsic Josephson coupling in Bi2Sr2CaCu2O8 single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:9366-9370. [PMID: 9982440 DOI: 10.1103/physrevb.53.9366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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29
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Koshelev AE. Mechanism of thermally activated c-axis dissipation in layered high-Tc superconductors at high fields. PHYSICAL REVIEW LETTERS 1996; 76:1340-1343. [PMID: 10061696 DOI: 10.1103/physrevlett.76.1340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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30
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Eltsev Y, Rapp Ö. Local versus nonlocal conductivity in YBa2Cu3O7- delta. PHYSICAL REVIEW LETTERS 1995; 75:2446. [PMID: 10059307 DOI: 10.1103/physrevlett.75.2446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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31
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Domínguez D, Gronbech-Jensen N, Bishop AR, Shenoy SR. Transformer configuration in three dimensional Josephson lattices at zero magnetic field. PHYSICAL REVIEW LETTERS 1995; 75:717-720. [PMID: 10060096 DOI: 10.1103/physrevlett.75.717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Qiu XG, Wuyts B, Maenhoudt M, Moshchalkov VV, Bruynseraede Y. Two different thermally activated flux-flow regimes in oxygen-deficient YBa2Cu3O7-x thin films. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:559-563. [PMID: 9979635 DOI: 10.1103/physrevb.52.559] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Vedeneev SI, Jansen AG, Tsvetkov AA, Wyder P. Bloch-Grüneisen behavior for the in-plane resistivity of Bi2Sr2CuOx single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:16380-16383. [PMID: 9978621 DOI: 10.1103/physrevb.51.16380] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Hensel B, Grasso G, Flükiger R. Limits to the critical transport current in superconducting (Bi,Pb)2Sr2Ca2Cu3O10 silver-sheathed tapes: The railway-switch model. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:15456-15473. [PMID: 9978505 DOI: 10.1103/physrevb.51.15456] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Dodgson MJ, Moore MA. Topological defects in the Abrikosov lattice of vortices in type-II superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:11887-11902. [PMID: 9977930 DOI: 10.1103/physrevb.51.11887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Lee TS, Missert N, Sagdahl LT, Clarke J, Clem JR, Char K, Eckstein JN, Fork DK, Lombardo L, Kapitulnik A, Schneemeyer LF, Waszczak JV. Correlation of Vortex Motion in High-Tc Superconductors. PHYSICAL REVIEW LETTERS 1995; 74:2796-2799. [PMID: 10058020 DOI: 10.1103/physrevlett.74.2796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Eltsev Y, Rapp Ö. Vortex liquid in single-crystal YBa2(Cu1-xFex)3O7- delta of varying anisotropy. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:9419-9422. [PMID: 9977603 DOI: 10.1103/physrevb.51.9419] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Uprety KK, Domínguez D. Simple model for the dc flux transformer in layered superconductors with Josephson coupling. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:5955-5964. [PMID: 9979510 DOI: 10.1103/physrevb.51.5955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Zhao Y, Gu GD, Russell GJ, Nakamura N, Tajima S, Wen JG, Uehara K, Koshizuka N. Normal-state reentrant behavior in superconducting Bi2Sr2CaCu2O8/Bi2Sr2Ca2Cu3O10 intergrowth single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3134-3139. [PMID: 9979098 DOI: 10.1103/physrevb.51.3134] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhao Y, Gu GD, Cochrane JW, Russell GJ, Wen JG, Nakamura N, Tajima S, Koshizuka N. Fluctuation of vortices and the fluxon transition in Bi2Sr2CaCu2O8+y single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3806-3811. [PMID: 9979199 DOI: 10.1103/physrevb.51.3806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Cho JH, Maley MP, Fleshler S, Lacerda A, Bulaevskii LN. High-magnetic-field transport properties of Bi2Sr2CaCu2O8 single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:6493-6496. [PMID: 9977038 DOI: 10.1103/physrevb.50.6493] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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López D, Nieva G. In- and out-of-plane vortex correlations in YBa2Cu3O7. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:7219-7221. [PMID: 9974693 DOI: 10.1103/physrevb.50.7219] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Balestrino G, Livanov DV, Milani E, Camarota B, Fiorani D, Testa AM. Vortex-lattice melting in Bi2Sr2CaCu2O8+ delta epitaxial films: Role of the oxygen stoichiometry. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:3446-3449. [PMID: 9976608 DOI: 10.1103/physrevb.50.3446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Gough CE, Exon NJ. Microwave response of anisotropic high-temperature-superconductor crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:488-495. [PMID: 9974566 DOI: 10.1103/physrevb.50.488] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Wan YM, Hebboul SE, Garland JC. Vortex phase diagram of Bi2Sr2CaCu2O8-y near the superconducting transition. PHYSICAL REVIEW LETTERS 1994; 72:3867-3870. [PMID: 10056317 DOI: 10.1103/physrevlett.72.3867] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Gu GD, Zhao Y, Russell GJ, Nakamura N, Tajima S, Uehara K, Koshizuka N. Effect of magnetic field and current on the observed reentrant phenomenon in Bi2Sr2CaCu2O8/Bi2Sr2Ca2Cu3O10 intergrowth single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:15424-15427. [PMID: 10010671 DOI: 10.1103/physrevb.49.15424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Liu G, Xiong G, Li G, Lian G, Wu K, Liu S, Li J, Yan S. Normal-state transport properties of YBa2Cu3O7- delta /PrBa2Cu3O7- delta superlattices. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:15287-15291. [PMID: 10010640 DOI: 10.1103/physrevb.49.15287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Eltsev Y, Holm W, Rapp Ö. Transition from intact to short decoupled vortices in the vortex liquid of YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:12333-12336. [PMID: 10010123 DOI: 10.1103/physrevb.49.12333] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Safar H, Gammel PL, Huse DA, Majumdar SN, Schneemeyer LF, Bishop DJ, López D, Nieva G. Observation of a nonlocal conductivity in the mixed state of YBa2Cu3O7- delta : Experimental evidence for a vortex line liquid. PHYSICAL REVIEW LETTERS 1994; 72:1272-1275. [PMID: 10056666 DOI: 10.1103/physrevlett.72.1272] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Rodríguez E, Goffman MF, Arribére A, Schneemeyer LF. Critical state of the weakly coupled two-dimensional superconductor Bi2Sr2CaCu2O8. PHYSICAL REVIEW LETTERS 1993; 71:3375-3378. [PMID: 10054957 DOI: 10.1103/physrevlett.71.3375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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