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Weitzel A, Pfaffinger L, Maccari I, Kronfeldner K, Huber T, Fuchs L, Mallord J, Linzen S, Il'ichev E, Paradiso N, Strunk C. Sharpness of the Berezinskii-Kosterlitz-Thouless Transition in Disordered NbN Films. Phys Rev Lett 2023; 131:186002. [PMID: 37977616 DOI: 10.1103/physrevlett.131.186002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 09/21/2023] [Indexed: 11/19/2023]
Abstract
We present a comprehensive investigation of the Berezinskii-Kosterlitz-Thouless transition in ultrathin strongly disordered NbN films. Measurements of resistance, current-voltage characteristics, and kinetic inductance on the very same device reveal a consistent picture of a sharp unbinding transition of vortex-antivortex pairs that fit standard renormalization group theory without extra assumptions in terms of inhomogeneity. Our experiments demonstrate that the previously observed broadening of the transition is not an intrinsic feature of strongly disordered superconductors and provide a clean starting point for the study of dynamical effects at the Berezinskii-Kosterlitz-Thouless transition.
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Affiliation(s)
- Alexander Weitzel
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - Lea Pfaffinger
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - Ilaria Maccari
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - Klaus Kronfeldner
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - Thomas Huber
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - Lorenz Fuchs
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - James Mallord
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - Sven Linzen
- Leibniz Institute of Photonic Technology, D-07745 Jena, Germany
| | - Evgeni Il'ichev
- Leibniz Institute of Photonic Technology, D-07745 Jena, Germany
| | - Nicola Paradiso
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - Christoph Strunk
- Institute for Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
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2
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Dawson RD, Rabinovich KS, Putzky D, Christiani G, Logvenov G, Keimer B, Boris AV. Approaching Two-Dimensional Superconductivity in Ultrathin DyBa_{2}Cu_{3}O_{7-δ}. Phys Rev Lett 2020; 125:237001. [PMID: 33337199 DOI: 10.1103/physrevlett.125.237001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/16/2020] [Indexed: 06/12/2023]
Abstract
The temperature dependence of the superfluid density ρ_{s}(T) has been measured for a series of ultrathin MBE-grown DyBa_{2}Cu_{3}O_{7-δ} superconducting (SC) films by submillimeter wave interferometry combined with time-domain terahertz spectroscopy and IR ellipsometry. We find that all films 10 u.c. and thicker show the same universal temperature dependence of ρ_{s}(T), which follows the critical behavior characteristic of single crystal YBa_{2}Cu_{3}O_{7-δ} as T approaches T_{c}. In 7 u.c. thick films, ρ_{s}(T) declines steeply upon approaching T_{c}, as expected for the Berezinskii-Kosterlitz-Thouless vortex unbinding transition. Our analysis provides evidence for a sharply defined 4 u.c. non-SC interfacial layer, leaving a quasi-2D SC layer on top. We propose that the SC state in this interfacial layer is suppressed by competing (possibly charge) order.
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Affiliation(s)
- R D Dawson
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - K S Rabinovich
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - D Putzky
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - G Christiani
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - G Logvenov
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - B Keimer
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - A V Boris
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
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3
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González LE, Ordoñez JE, Melo-Luna CA, Mendoza E, Reyes D, Zambrano G, Porras-Montenegro N, Granada JC, Gómez ME, Reina JH. Experimental realisation of tunable ferroelectric/superconductor [Formula: see text] 1D photonic crystals in the whole visible spectrum. Sci Rep 2020; 10:13083. [PMID: 32753626 PMCID: PMC7403599 DOI: 10.1038/s41598-020-69811-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 07/17/2020] [Indexed: 11/25/2022] Open
Abstract
Emergent technologies that make use of novel materials and quantum properties of light states are at the forefront in the race for the physical implementation, encoding and transmission of information. Photonic crystals (PCs) enter this paradigm with optical materials that allow the control of light propagation and can be used for optical communication, and photonics and electronics integration, making use of materials ranging from semiconductors, to metals, metamaterials, and topological insulators, to mention but a few. Here, we show how designer superconductor materials integrated into PCs fabrication allow for an extraordinary reduction of electromagnetic waves damping, making possible their optimal propagation and tuning through the structure, below critical superconductor temperature. We experimentally demonstrate, for the first time, a successful integration of ferroelectric and superconductor materials into a one-dimensional (1D) PC composed of [Formula: see text] bilayers that work in the whole visible spectrum, and below (and above) critical superconductor temperature [Formula: see text]. Theoretical calculations support, for different number of bilayers N, the effectiveness of the produced 1D PCs and may pave the way for novel optoelectronics integration and information processing in the visible spectrum, while preserving their electric and optical properties.
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Affiliation(s)
- Luz E. González
- Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia
- Solid State Theoretical Physics Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, 730001 Ibagué, Colombia
| | - John E. Ordoñez
- Thin Films Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - Carlos A. Melo-Luna
- Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia
- Quantum Technologies, Information and Complexity Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - Evelyn Mendoza
- Thin Films Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - David Reyes
- Centre d’Élaboration de Matériaux et d’Etudes Structurales (CEMES) CNRS-UPR 8011, 29 Rue Jeanne Marvig, 31055 Toulouse, France
| | - Gustavo Zambrano
- Thin Films Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - Nelson Porras-Montenegro
- Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia
- Solid State Theoretical Physics Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - Juan C. Granada
- Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia
- Solid State Theoretical Physics Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - Maria E. Gómez
- Thin Films Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
| | - John H. Reina
- Centre for Bioinformatics and Photonics (CIBioFi), Universidad del Valle, Edificio E20 No. 1069, 760032 Cali, Colombia
- Quantum Technologies, Information and Complexity Group, Departamento de Física, Universidad del Valle, 760032 Cali, Colombia
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Keumo Tsiaze RM, Wirngo AV, Mkam Tchouobiap SE, Fotue AJ, Baloïtcha E, Hounkonnou MN. Effects of critical fluctuations and dimensionality on the jump in specific heat at the superconducting transition temperature: Application to YBa_{2}Cu_{3}O_{7-δ},Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}, and KOs_{2}O_{6} compounds. Phys Rev E 2016; 93:062105. [PMID: 27415206 DOI: 10.1103/physreve.93.062105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Indexed: 11/07/2022]
Abstract
We report on a study of the superconducting order parameter thermodynamic fluctuations in YBa_{2}Cu_{3}O_{7-δ},Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}, and KOs_{2}O_{6} compounds. A nonperturbative technique within the framework of the renormalized Gaussian approach is proposed. The essential features are reported (analytically and numerically) through Ginzburg-Landau (GL) model-based calculations which take into account both the dimension and the microscopic parameters of the system. By presenting a self-consistent approach improvement on the GL theory, a technique for obtaining corrections to the asymptotic critical behavior in terms of nonuniversal parameters is developed. Therefore, corrections to the specific heat and the critical transition temperature for one-, two-, and three-dimensional samples are found taking into account the fact that fluctuations occur at all length scales as the critical point of a system is approached. The GL model in the free-field approximation and the 3D-XY model are suitable for describing the weak and strong fluctuation regimes respectively. However, with a modified quadratic coefficient, the renormalized GL model is able to explain certain experimental observations including the specific heat of complicated systems, such as the cup-rate superconductors and the β-pyrochlore oxides. It is clearly shown that the enhancement, suppression, or rounding of the specific heat jump of high-T_{c} cup-rate superconductors at the transition are indicative of the order parameter thermodynamic fluctuations according to the dimension and the nature of interactions.
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Affiliation(s)
- R M Keumo Tsiaze
- Laboratory of Mechanics, Materials and Structures, Department of Physics, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon.,International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 B.P. 50, Cotonou, Republic of Benin
| | - A V Wirngo
- International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 B.P. 50, Cotonou, Republic of Benin
| | - S E Mkam Tchouobiap
- International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 B.P. 50, Cotonou, Republic of Benin.,Laboratory of Research on Advanced Materials and Nonlinear Science (LaRAMaNS), Department of Physics, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - A J Fotue
- Laboratory of Mechanics, Materials and Structures, Department of Physics, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon.,Mesoscopic and Multilayer Structure Laboratory, Department of Physics, Faculty of Science, University of Dschang, P.O. Box 479, Dschang, Cameroon
| | - E Baloïtcha
- International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 B.P. 50, Cotonou, Republic of Benin
| | - M N Hounkonnou
- International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 B.P. 50, Cotonou, Republic of Benin
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Bossoni L, Romanó L, Canfield PC, Lascialfari A. Non-conventional superconducting fluctuations in Ba(Fe1-xRhx)2As2 iron-based superconductors. J Phys Condens Matter 2014; 26:405703. [PMID: 25229750 DOI: 10.1088/0953-8984/26/40/405703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We measured the static uniform spin susceptibility of Ba(Fe(1-x)Rh(x))(2)As(2) iron-based superconductors, over a broad range of doping (0.041 ⩽ x ⩽ 0.094) and magnetic fields. At small fields (H ⩽ 1 kOe) we observed, above the transition temperature Tc, the occurrence of precursor diamagnetism, which is not ascribable to the Ginzburg-Landau theory. On the contrary, our data agree with a phase fluctuation model, which has been used to interpret a similar phenomenology occurring in the high-Tc cuprate superconductors. Additionally, in the presence of strong fields, the unconventional fluctuating diamagnetism is suppressed, whereas Ginzburg-Landau fluctuations are found, in agreement with literature.
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Affiliation(s)
- L Bossoni
- Department of Physics, University of Pavia-CNISM, Via Bassi 6, I-27100 Pavia, Italy
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7
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Chi S, Grothe S, Liang R, Dosanjh P, Hardy WN, Burke SA, Bonn DA, Pennec Y. Scanning tunneling spectroscopy of superconducting LiFeAs single crystals: evidence for two nodeless energy gaps and coupling to a bosonic mode. Phys Rev Lett 2012; 109:087002. [PMID: 23002767 DOI: 10.1103/physrevlett.109.087002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Indexed: 06/01/2023]
Abstract
The superconducting compound LiFeAs is studied by scanning tunneling microscopy and spectroscopy. A gap map of the unreconstructed surface indicates a high degree of homogeneity in this system. Spectra at 2 K show two nodeless superconducting gaps with Δ(1)=5.3±0.1 meV and Δ(2)=2.5±0.2 meV. The gaps close as the temperature is increased to the bulk T(c), indicating that the surface accurately represents the bulk. A dip-hump structure is observed below T(c) with an energy scale consistent with a magnetic resonance recently reported by inelastic neutron scattering.
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Affiliation(s)
- Shun Chi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
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8
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Broun DM, Huttema WA, Turner PJ, Ozcan S, Morgan B, Liang R, Hardy WN, Bonn DA. Superfluid density in a highly underdoped YBa_{2}Cu_{3}O_{6+y} superconductor. Phys Rev Lett 2007; 99:237003. [PMID: 18233402 DOI: 10.1103/physrevlett.99.237003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2007] [Indexed: 05/25/2023]
Abstract
The superfluid density rho_{s}(T) identical with1/lambda;{2}(T) has been measured at 2.64 GHz in highly underdoped YBa_{2}Cu_{3}O_{6+y}, at 37 dopings with T_{c} between 3 and 17 K. Within limits set by the transition width DeltaT_{c} approximately 0.4 K, rho_{s}(T) shows no evidence of critical fluctuations as T-->T_{c}, with a mean-field-like transition and no indication of vortex unbinding. Instead, we propose that rho_{s} displays the behavior expected for a quantum phase transition in the (3+1)-dimensional XY universality class, with rho_{s0} proportional, variant(p-p_{c}), T_{c} proportional, variant(p-p_{c});{1/2}, and rho_{s}(T) proportional, variant(T_{c}-T);{1} as T-->T_{c}.
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Affiliation(s)
- D M Broun
- Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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9
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Franz M, Iyengar AP. Superfluid density of strongly underdoped cuprate superconductors from a four-dimensional XY model. Phys Rev Lett 2006; 96:047007. [PMID: 16486878 DOI: 10.1103/physrevlett.96.047007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2005] [Indexed: 05/06/2023]
Abstract
A new phenomenology is proposed for the superfluid density rhos of strongly underdoped cuprate superconductors based on recent data for ultraclean single crystals of YBa2Cu3O7-x. We show that the puzzling departure from Uemura scaling and the decline of the slope as the Tc=0 quantum critical point is approached can be understood in terms of the renormalization of quasiparticle effective charge by quantum fluctuations of the superconducting phase. We then employ a (3+1)-dimensional XY model to calculate, within particular approximations, the renormalization of rhos and its slope, explain the new phenomenology, and predict its eventual demise close to the quantum critical point.
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Affiliation(s)
- M Franz
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada V6T 1Z1
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Kajantie K, Laine M, Neuhaus T, Rajantie A, Rummukainen K. Critical behaviour of the Ginzburg-Landau model in the type II region. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0920-5632(01)01898-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
We calculate analytically the dynamic critical exponent z(MC), measured in Monte Carlo simulations for a vortex loop model of the superconducting transition, and account for the simulation results. In the weak screening limit, where magnetic fluctuations are neglected, the dynamic exponent is found to be z(MC) = 3/2. In the perfect screening limit, z(MC) = 5/2. We relate z(MC) to the actual value of z observable in experiments and find that z approximately 2, consistent with some experimental results.
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Affiliation(s)
- V Aji
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801-3080, USA
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12
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Kötzler J, Görlitz D, Skwirblies S, Wriedt A. Loss of superconducting phase coherence in YBa(2)Cu(3)O(7) films: vortex-loop unbinding and Kosterlitz-Thouless phenomena. Phys Rev Lett 2001; 87:127005. [PMID: 11580544 DOI: 10.1103/physrevlett.87.127005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2001] [Indexed: 05/23/2023]
Abstract
The linear conductance G' + iG(") parallel to the CuO(2) planes of flat d = 50-600 nm thin films is measured between 30 mHz and 800 kHz. The decay of the phase-coherent superfluid density signals the proliferation of 3D vortex loops which terminates at T*<T(c), where omegaG"(T*) attains 35(5) nH(-1) being independent of d. We ascribe this novel transition to the blowout of loops which reach the film thickness. Above T(c), G(omega) appears to be determined by unbound vortex lines thermally excited in a 2D phase-incoherent superfluid showing features previously being associated with a Kosterlitz-Thouless transition.
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Affiliation(s)
- J Kötzler
- Institut für Angewandte Physik und Zentrum für Mikrostrukturforschung, Universität Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany
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Hu X. Bicritical and tetracritical phenomena and scaling properties of the SO(5) theory. Phys Rev Lett 2001; 87:057004. [PMID: 11497801 DOI: 10.1103/physrevlett.87.057004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2000] [Revised: 04/04/2001] [Indexed: 05/23/2023]
Abstract
By Monte Carlo simulations on a 3D SO(5) rotator model it is shown that, in contrast to the epsilon expansions of the renormalization group, the bicritical point is stable to biquadratic perturbations of AF-SC (antiferromagnetism-superconductivity) repulsions, which are produced by quantum fluctuations originated from the Gutzwiller projection. Therefore, the present work completes the link from a physical projected SO(5) starting point to an asymptotic SO(5) symmetry point. The tetracritical point is stable for attractive AF-SC interactions. Critical exponents and ratios are evaluated by scaling analysis. Bicritical and tetracritical scaling functions are derived for the first time. Suggestions on experiments are given.
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Affiliation(s)
- X Hu
- National Institute for Materials Science, Tsukuba 305-0047, Japan
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Booth JC, Wu DH, Qadri SB, Skelton EF, Osofsky MS, Piqué A, Anlage SM. Large Dynamical Fluctuations in the Microwave Conductivity of YBa2Cu3O7- delta above Tc. Phys Rev Lett 1996; 77:4438-4441. [PMID: 10062538 DOI: 10.1103/physrevlett.77.4438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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16
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Overend N, Howson MA, Lawrie ID, Abell S, Hirst PJ, Chen C, Chowdhury S, Hodby JW, Inderhees SE, Salamon MB. Comparison of critical and lowest-Landau-level scaling of the specific heat of several YBa2Cu3O7- delta single crystals. Phys Rev B Condens Matter 1996; 54:9499-9508. [PMID: 9984690 DOI: 10.1103/physrevb.54.9499] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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17
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Rodriguez JP. Critical behavior of the flux-line tension in extreme type-II superconductors. Phys Rev B Condens Matter 1996; 54:497-501. [PMID: 9984286 DOI: 10.1103/physrevb.54.497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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19
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Herbut IF, Tesanovic Z. Critical fluctuations in superconductors and the magnetic field penetration depth. Phys Rev Lett 1996; 76:4588-4591. [PMID: 10061329 DOI: 10.1103/physrevlett.76.4588] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Carrington A, Marcenat C, Bouquet F, Colson D, Viallet V. Specific heat of Hg-based high temperature superconductors nearT c. ACTA ACUST UNITED AC 1996; 46:3177-84. [DOI: 10.1007/bf02548127] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bussmann-Holder A, Bishop AR, Genzel L, Simon A. Three-dimensional gap structure in layered high-temperature superconductors. Phys Rev B Condens Matter 1996; 53:R11968-R11971. [PMID: 9982900 DOI: 10.1103/physrevb.53.r11968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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22
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Riou O, Charalambous M, Gandit P, Chaussy J, Lejay P, Hardy WN. Dissymetry of critical exponants in YBCO. ACTA ACUST UNITED AC 1996; 46:1219-20. [DOI: 10.1007/bf02562724] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Anlage SM, Mao J, Booth JC, Wu DH, Peng JL. Fluctuations in the microwave conductivity of YBa2Cu3O7- delta single crystals in zero dc magnetic field. Phys Rev B Condens Matter 1996; 53:2792-2796. [PMID: 9983791 DOI: 10.1103/physrevb.53.2792] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Panagopoulos C, Cooper JR, Peacock GB, Gameson I, Edwards PP, Schmidbauer W, Hodby JW. Anisotropic magnetic penetration depth of grain-aligned HgBa2Ca2Cu3O8+ delta. Phys Rev B Condens Matter 1996; 53:R2999-R3002. [PMID: 9983905 DOI: 10.1103/physrevb.53.r2999] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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25
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Xue YY, Cao Y, Xiong Q, Chen F, Chu CW. Vortex fluctuations and interlayer coupling in cuprates. Phys Rev B Condens Matter 1996; 53:2815-2818. [PMID: 9983794 DOI: 10.1103/physrevb.53.2815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Liang R, Bonn DA, Hardy WN. Discontinuity of reversible magnetization in untwinned YBCO single crystals at the first order vortex melting transition. Phys Rev Lett 1996; 76:835-838. [PMID: 10061562 DOI: 10.1103/physrevlett.76.835] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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27
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Micnas R, Robaszkiewicz S, Kostyrko T. Thermodynamic and electromagnetic properties of hard-core charged bosons on a lattice. Phys Rev B Condens Matter 1995; 52:6863-6879. [PMID: 9981917 DOI: 10.1103/physrevb.52.6863] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Holm W, Eltsev Y, Rapp Ö. Paraconductivity along the a and b axes in YBa2Cu3O7- delta single crystals. Phys Rev B Condens Matter 1995; 51:11992-11995. [PMID: 9977952 DOI: 10.1103/physrevb.51.11992] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Howson MA, Overend N, Lawrie ID, Salamon MB. Three-dimensional XY scaling of the resistivity of YBa2Cu3O7- delta single crystals. Phys Rev B Condens Matter 1995; 51:11984-11987. [PMID: 9977950 DOI: 10.1103/physrevb.51.11984] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Friesen M. Unpaired vortices and layer decoupling in quasi-two-dimensional superconductors: A model calculation. Phys Rev B Condens Matter 1995; 51:12786-12796. [PMID: 9978056 DOI: 10.1103/physrevb.51.12786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sigrist M, Bailey DB, Laughlin RB. Fractional vortices as evidence of time-reversal symmetry breaking in high-temperature superconductors. Phys Rev Lett 1995; 74:3249-3252. [PMID: 10058149 DOI: 10.1103/physrevlett.74.3249] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Shenoy SR, Chattopadhyay B. Anisotropic three-dimensional XY model and vortex-loop scaling. Phys Rev B Condens Matter 1995; 51:9129-9147. [PMID: 9977555 DOI: 10.1103/physrevb.51.9129] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ulm ER, Kim JT, Lemberger TR, Foltyn SR, Wu X. Magnetic penetration depth in Ni- and Zn-doped YBa2(Cu1-xMx)3O7 films. Phys Rev B Condens Matter 1995; 51:9193-9198. [PMID: 9977561 DOI: 10.1103/physrevb.51.9193] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Klemm RA, Liu SH. Role of normal layers in penetration depth determinations of the pairing state in high-Tc superconductors. Phys Rev Lett 1995; 74:2343-2346. [PMID: 10057904 DOI: 10.1103/physrevlett.74.2343] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Ukrainczyk I, Dulcic A. Superconducting fluctuations in the microwave conductivity of YBa2Cu3O7- delta single crystals. Phys Rev B Condens Matter 1995; 51:6788-6791. [PMID: 9977229 DOI: 10.1103/physrevb.51.6788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Mao J, Wu DH, Peng JL, Greene RL, Anlage SM. Anisotropic surface impedance of YBa2Cu3O7- delta single crystals. Phys Rev B Condens Matter 1995; 51:3316-3319. [PMID: 9979138 DOI: 10.1103/physrevb.51.3316] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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