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Heinze L, Jeschke HO, Mazin II, Metavitsiadis A, Reehuis M, Feyerherm R, Hoffmann JU, Bartkowiak M, Prokhnenko O, Wolter AUB, Ding X, Zapf VS, Corvalán Moya C, Weickert F, Jaime M, Rule KC, Menzel D, Valentí R, Brenig W, Süllow S. Magnetization Process of Atacamite: A Case of Weakly Coupled S=1/2 Sawtooth Chains. Phys Rev Lett 2021; 126:207201. [PMID: 34110224 DOI: 10.1103/physrevlett.126.207201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
We present a combined experimental and theoretical study of the mineral atacamite Cu_{2}Cl(OH)_{3}. Density-functional theory yields a Hamiltonian describing anisotropic sawtooth chains with weak 3D connections. Experimentally, we fully characterize the antiferromagnetically ordered state. Magnetic order shows a complex evolution with the magnetic field, while, starting at 31.5 T, we observe a plateaulike magnetization at about M_{sat}/2. Based on complementary theoretical approaches, we show that the latter is unrelated to the known magnetization plateau of a sawtooth chain. Instead, we provide evidence that the magnetization process in atacamite is a field-driven canting of a 3D network of weakly coupled sawtooth chains that form giant moments.
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Affiliation(s)
- L Heinze
- Institut für Physik der Kondensierten Materie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - H O Jeschke
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - I I Mazin
- Department of Physics and Astronomy, George Mason University, Fairfax, Virginia 22030, USA
- Quantum Science and Engineering Center, George Mason University, Fairfax, Virginia 22030, USA
| | - A Metavitsiadis
- Institut für Theoretische Physik, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - M Reehuis
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, D-14109 Berlin, Germany
| | - R Feyerherm
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, D-14109 Berlin, Germany
| | - J-U Hoffmann
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, D-14109 Berlin, Germany
| | - M Bartkowiak
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, D-14109 Berlin, Germany
| | - O Prokhnenko
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, D-14109 Berlin, Germany
| | - A U B Wolter
- Institute for Solid State and Materials Research, Leibniz IFW Dresden, D-01069 Dresden, Germany
| | - X Ding
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V S Zapf
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Corvalán Moya
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- National Atomic Energy Commission (CNEA), Tres de Febrero University (UNTREF), National Scientific and Technical Research Council (CONICET), Argentina
| | - F Weickert
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Jaime
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - K C Rule
- Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia
| | - D Menzel
- Institut für Physik der Kondensierten Materie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - R Valentí
- Institut für Theoretische Physik, Goethe-Universität Frankfurt, D-60438 Frankfurt am Main, Germany
| | - W Brenig
- Institut für Theoretische Physik, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - S Süllow
- Institut für Physik der Kondensierten Materie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
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Schroeter D, Steinki N, Schilling M, Fernández Scarioni A, Krzysteczko P, Dziomba T, Schumacher HW, Menzel D, Süllow S. MnSi nanostructures obtained from epitaxially grown thin films: magnetotransport and Hall effect. J Phys Condens Matter 2018; 30:235805. [PMID: 29671753 DOI: 10.1088/1361-648x/aabf5c] [Citation(s) in RCA: 1] [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: 06/08/2023]
Abstract
We present a comparative study of the (magneto)transport properties, including Hall effect, of bulk, epitaxially grown thin film and nanostructured MnSi. In order to set our results in relation to published data we extensively characterize our materials, this way establishing a comparatively good sample quality. Our analysis reveals that in particular for thin film and nanostructured material, there are extrinsic and intrinsic contributions to the electronic transport properties, which by modeling the data we separate out. Finally, we discuss our Hall effect data of nanostructured MnSi under consideration of the extrinsic contributions and with respect to the question of the detection of a topological Hall effect in a skyrmionic lattice.
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Affiliation(s)
- D Schroeter
- Institut für Physik der Kondensierten Materie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
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Willenberg B, Schäpers M, Wolter AUB, Drechsler SL, Reehuis M, Hoffmann JU, Büchner B, Studer AJ, Rule KC, Ouladdiaf B, Süllow S, Nishimoto S. Complex Field-Induced States in Linarite PbCuSO4(OH)2 with a Variety of High-Order Exotic Spin-Density Wave States. Phys Rev Lett 2016; 116:047202. [PMID: 26871354 DOI: 10.1103/physrevlett.116.047202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Indexed: 06/05/2023]
Abstract
Low-temperature neutron diffraction and NMR studies of field-induced phases in linarite are presented for magnetic fields H∥b axis. A two-step spin-flop transition is observed, as well as a transition transforming a helical magnetic ground state into an unusual magnetic phase with sine-wave-modulated moments ∥H. An effective J[over ˜]_{1}-J[over ˜]_{2} single-chain model with a magnetization-dependent frustration ratio α_{eff}=-J[over ˜]_{2}/J[over ˜]_{1} is proposed. The latter is governed by skew interchain couplings and shifted to the vicinity of the ferromagnetic critical point. It explains qualitatively the observation of a rich variety of exotic longitudinal collinear spin-density wave, SDW_{p}, states (9≥p≥2).
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Affiliation(s)
- B Willenberg
- Institute for Condensed Matter Physics, TU Braunschweig, D-38106 Braunschweig, Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - M Schäpers
- Leibniz Institute for Solid State and Materials Research IFW Dresden, D-01171 Dresden, Germany
| | - A U B Wolter
- Leibniz Institute for Solid State and Materials Research IFW Dresden, D-01171 Dresden, Germany
| | - S-L Drechsler
- Leibniz Institute for Solid State and Materials Research IFW Dresden, D-01171 Dresden, Germany
| | - M Reehuis
- Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - J-U Hoffmann
- Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - B Büchner
- Leibniz Institute for Solid State and Materials Research IFW Dresden, D-01171 Dresden, Germany
- Institut für Festkörperphysik, TU Dresden, D-01062 Dresden, Germany
| | - A J Studer
- The Bragg Institute, ANSTO, Kirrawee DC, New South Wales 2234, Australia
| | - K C Rule
- The Bragg Institute, ANSTO, Kirrawee DC, New South Wales 2234, Australia
| | - B Ouladdiaf
- Institute Laue-Langevin, F-38042 Grenoble Cedex, France
| | - S Süllow
- Institute for Condensed Matter Physics, TU Braunschweig, D-38106 Braunschweig, Germany
| | - S Nishimoto
- Leibniz Institute for Solid State and Materials Research IFW Dresden, D-01171 Dresden, Germany
- Institut für Festkörperphysik, TU Dresden, D-01062 Dresden, Germany
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Willenberg B, Schäpers M, Rule KC, Süllow S, Reehuis M, Ryll H, Klemke B, Kiefer K, Schottenhamel W, Büchner B, Ouladdiaf B, Uhlarz M, Beyer R, Wosnitza J, Wolter AUB. Magnetic frustration in a quantum spin chain: the case of linarite PbCuSO4(OH)2. Phys Rev Lett 2012; 108:117202. [PMID: 22540505 DOI: 10.1103/physrevlett.108.117202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Indexed: 05/31/2023]
Abstract
We present a combined neutron diffraction and bulk thermodynamic study of the natural mineral linarite PbCuSO4(OH)2, this way establishing the nature of the ground-state magnetic order. An incommensurate magnetic ordering with a propagation vector k=(0,0.186,1/2) was found below T(N)=2.8 K in a zero magnetic field. The analysis of the neutron diffraction data yields an elliptical helical structure, where one component (0.638μ(B)) is in the monoclinic ac plane forming an angle with the a axis of 27(2)°, while the other component (0.833μ(B)) points along the b axis. From a detailed thermodynamic study of bulk linarite in magnetic fields up to 12 T, applied along the chain direction, a very rich magnetic phase diagram is established, with multiple field-induced phases, and possibly short-range-order effects occurring in high fields. Our data establish linarite as a model compound of the frustrated one-dimensional spin chain, with ferromagnetic nearest-neighbor and antiferromagnetic next-nearest-neighbor interactions. Long-range magnetic order is brought about by interchain coupling 1 order of magnitude smaller than the intrachain coupling.
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Affiliation(s)
- B Willenberg
- Helmholtz Center Berlin for Materials and Energy, Berlin, Germany
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Cong PT, Wolf B, Tutsch U, Remović-Langer K, Schreuer J, Süllow S, Lang M. Ultrasonic investigation on the distorted diamond chain compound Azurite. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/200/1/012226] [Citation(s) in RCA: 4] [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: 11/12/2022]
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Rule KC, Wolter AUB, Süllow S, Tennant DA, Brühl A, Köhler S, Wolf B, Lang M, Schreuer J. Nature of the spin dynamics and 1/3 magnetization plateau in azurite. Phys Rev Lett 2008; 100:117202. [PMID: 18517818 DOI: 10.1103/physrevlett.100.117202] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2007] [Indexed: 05/26/2023]
Abstract
We present a specific heat and inelastic neutron scattering study in magnetic fields up into the 1/3 magnetization plateau phase of the diamond chain compound azurite Cu3(CO3)2(OH)2. We establish that the magnetization plateau is a dimer-monomer state, i.e., consisting of a chain of S=1/2 monomers, which are separated by S=0 dimers on the diamond chain backbone. The effective spin couplings Jmono/kB=10.1(2) K and Jdimer/kB=1.8(1) K are derived from the monomer and dimer dispersions. They are associated to microscopic couplings J1/kB=1(2) K, J2/kB=55(5) K and a ferromagnetic J3/kB=-20(5) K, possibly as result of dz2} orbitals in the Cu-O bonds providing superexchange (SE) pathways with JSE=6.5 K.
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Affiliation(s)
- K C Rule
- Hahn-Meitner-Institut GmbH, D-14109 Berlin, Germany
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Wolter AUB, Wzietek P, Süllow S, Litterst FJ, Honecker A, Brenig W, Feyerherm R, Klauss HH. Giant spin canting in the S=1/2 antiferromagnetic chain [CuPM(NO3)2(H2O)2]n observed by 13C-NMR. Phys Rev Lett 2005; 94:057204. [PMID: 15783689 DOI: 10.1103/physrevlett.94.057204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2004] [Indexed: 05/24/2023]
Abstract
We present a combined experimental and theoretical study on copper pyrimidine dinitrate [CuPM(NO3)2(H2O)2]n, a one-dimensional S=1/2 antiferromagnet with alternating local symmetry. From the local susceptibility measured by NMR at the three inequivalent carbon sites in the pyrimidine molecule we deduce a giant spin canting, i.e., an additional staggered magnetization perpendicular to the applied external field at low temperatures. The magnitude of the transverse magnetization, the spin canting of (52+/-4) degrees at 10 K and 9.3 T, and its temperature dependence are in excellent agreement with exact diagonalization calculations.
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Affiliation(s)
- A U B Wolter
- Institut für Metallphysik und Nukleare Festkörperphysik, TU Braunschweig, 38106 Braunschweig, Germany
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Süllow S, Maksimov I, Otop A, Litterst FJ, Perucchi A, Degiorgi L, Mydosh JA. Metallic ground state and glassy transport in single crystalline URh2Ge2: enhancement of disorder effects in a strongly correlated electron system. Phys Rev Lett 2004; 93:266602. [PMID: 15698001 DOI: 10.1103/physrevlett.93.266602] [Citation(s) in RCA: 1] [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: 08/23/2004] [Indexed: 05/24/2023]
Abstract
We present a detailed study of the electronic transport properties on a single crystalline specimen of the moderately disordered heavy-fermion system URh2Ge2. For this material, we find glassy electronic transport in a single crystalline compound. We derive the temperature dependence of the electrical conductivity and establish metallicity by means of optical conductivity and Hall effect measurements. The overall behavior of the electronic transport properties closely resembles that of metallic glasses, with at low temperatures an additional minor spin disorder contribution. We argue that this glassy electronic behavior in a crystalline compound reflects the enhancement of disorder effects as a consequence of strong electronic correlations.
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Affiliation(s)
- S Süllow
- Institut für Metallphysik und Nukleare Festkörperphysik, TU Braunschweig, 38106 Braunschweig, Germany
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Wolter A, Klauss HH, Litterst F, Burghardt T, Eichler A, Feyerherm R, Süllow S. A pressure study of the antiferromagnetic phase of FePM 2 Cl 2 (PM=pyrimidine). Polyhedron 2003. [DOI: 10.1016/s0277-5387(03)00182-7] [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: 10/27/2022]
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Mentink SA, Mason TE, Süllow S, Nieuwenhuys GJ, Menovsky AA, Mydosh JA, Perenboom JA. Gap formation and magnetic ordering in URu2Si2 probed by high-field magnetoresistance. Phys Rev B Condens Matter 1996; 53:R6014-R6017. [PMID: 9982099 DOI: 10.1103/physrevb.53.r6014] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [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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Süllow S, Ludoph B, Becker B, Nieuwenhuys GJ, Menovsky AA, Mydosh JA, Mentink SA, Mason TE. Magnetic behavior of the heavy-fermion system UPd2Ga3. Phys Rev B Condens Matter 1995; 52:12784-12789. [PMID: 9980445 DOI: 10.1103/physrevb.52.12784] [Citation(s) in RCA: 7] [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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