1
|
Nigro A, Cuono G, Marra P, Leo A, Grimaldi G, Liu Z, Mi Z, Wu W, Liu G, Autieri C, Luo J, Noce C. Dimensionality of the Superconductivity in the Transition Metal Pnictide WP. MATERIALS 2022; 15:ma15031027. [PMID: 35160969 PMCID: PMC8839116 DOI: 10.3390/ma15031027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/16/2022] [Accepted: 01/25/2022] [Indexed: 11/16/2022]
Abstract
We report theoretical and experimental results on the transition metal pnictide WP. The theoretical outcomes based on tight-binding calculations and density functional theory indicate that WP is a three-dimensional superconductor with an anisotropic electronic structure and nonsymmorphic symmetries. On the other hand, magnetoresistance experimental data and the analysis of superconducting fluctuations of the conductivity in external magnetic field indicate a weakly anisotropic three-dimensional superconducting phase.
Collapse
Affiliation(s)
- Angela Nigro
- Dipartimento di Fisica “E.R. Caianiello”, Università degli Studi di Salerno, 84084 Fisciano, Salerno, Italy; (A.N.); (A.L.); (G.G.); (C.N.)
- Consiglio Nazionale delle Ricerche, CNR-SPIN, UOS Salerno, 84084 Fisciano, Salerno, Italy;
| | - Giuseppe Cuono
- International Research Centre Magtop, Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, PL-02668 Warsaw, Poland
- Correspondence: (G.C.); (P.M.)
| | - Pasquale Marra
- Graduate School of Mathematical Sciences, The University of Tokyo, Komaba, Tokyo 153-8914, Japan
- Department of Physics, Research and Education Center for Natural Sciences, Keio University, Hiyoshi, Yokohama 223-8521, Japan
- Correspondence: (G.C.); (P.M.)
| | - Antonio Leo
- Dipartimento di Fisica “E.R. Caianiello”, Università degli Studi di Salerno, 84084 Fisciano, Salerno, Italy; (A.N.); (A.L.); (G.G.); (C.N.)
- Consiglio Nazionale delle Ricerche, CNR-SPIN, UOS Salerno, 84084 Fisciano, Salerno, Italy;
- NANO_MATES Research Centre for NanoMaterials and NanoTechnology, Università degli Studi di Salerno, 84084 Fisciano, Salerno, Italy
| | - Gaia Grimaldi
- Dipartimento di Fisica “E.R. Caianiello”, Università degli Studi di Salerno, 84084 Fisciano, Salerno, Italy; (A.N.); (A.L.); (G.G.); (C.N.)
- Consiglio Nazionale delle Ricerche, CNR-SPIN, UOS Salerno, 84084 Fisciano, Salerno, Italy;
| | - Ziyi Liu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (Z.L.); (Z.M.); (W.W.); (G.L.); (J.L.)
| | - Zhenyu Mi
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (Z.L.); (Z.M.); (W.W.); (G.L.); (J.L.)
| | - Wei Wu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (Z.L.); (Z.M.); (W.W.); (G.L.); (J.L.)
| | - Guangtong Liu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (Z.L.); (Z.M.); (W.W.); (G.L.); (J.L.)
- Songshan Lake Materials Laboratory, Dongguan 523808, China
| | - Carmine Autieri
- Consiglio Nazionale delle Ricerche, CNR-SPIN, UOS Salerno, 84084 Fisciano, Salerno, Italy;
- International Research Centre Magtop, Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, PL-02668 Warsaw, Poland
| | - Jianlin Luo
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (Z.L.); (Z.M.); (W.W.); (G.L.); (J.L.)
- Songshan Lake Materials Laboratory, Dongguan 523808, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Canio Noce
- Dipartimento di Fisica “E.R. Caianiello”, Università degli Studi di Salerno, 84084 Fisciano, Salerno, Italy; (A.N.); (A.L.); (G.G.); (C.N.)
- Consiglio Nazionale delle Ricerche, CNR-SPIN, UOS Salerno, 84084 Fisciano, Salerno, Italy;
| |
Collapse
|
2
|
Anisotropy dependence of the fluctuation spectroscopy in the critical and gaussian regimes in superconducting NaFe 1-xCo x As single crystals. Sci Rep 2018; 8:8556. [PMID: 29867126 PMCID: PMC5986903 DOI: 10.1038/s41598-018-26939-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 05/23/2018] [Indexed: 12/03/2022] Open
Abstract
We investigate thermal fluctuations in terms of diamagnetism and magnetotransport in superconducting NaFe1−xCoxAs single crystals with different doping levels. Results show that in the case of optimal doped and lightly overdoped (x = 0.03, 0.05) crystals the analysis in the critical as well as in the Gaussian fluctuation regions is consistent with the Ginzburg-Landau 3D fluctuation theory. However, in the case of strongly overdoped samples (x ≥ 0.07) the Ullah-Dorsey scaling of the fluctuation induced magnetoconductivity in the critical region confirms that thermal fluctuations exhibit a 3D anisotropic nature only in a narrow temperature region around Tc(H). This is consistent with the fact that in these samples the fluctuation effects in the Gaussian region above Tc may be described by the Lawrence-Doniach approach. Our results indicate that the anisotropy of these materials increases significantly with the doping level.
Collapse
|
3
|
Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS-BEC crossover. Nat Commun 2016; 7:12843. [PMID: 27687782 PMCID: PMC5056430 DOI: 10.1038/ncomms12843] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/03/2016] [Indexed: 11/24/2022] Open
Abstract
The physics of the crossover between weak-coupling Bardeen–Cooper–Schrieffer (BCS) and strong-coupling Bose–Einstein condensate (BEC) limits gives a unified framework of quantum-bound (superfluid) states of interacting fermions. This crossover has been studied in the ultracold atomic systems, but is extremely difficult to be realized for electrons in solids. Recently, the superconducting semimetal FeSe with a transition temperature Tc=8.5 K has been found to be deep inside the BCS–BEC crossover regime. Here we report experimental signatures of preformed Cooper pairing in FeSe, whose energy scale is comparable to the Fermi energies. In stark contrast to usual superconductors, large non-linear diamagnetism by far exceeding the standard Gaussian superconducting fluctuations is observed below T*∼20 K, providing thermodynamic evidence for prevailing phase fluctuations of superconductivity. Nuclear magnetic resonance and transport data give evidence of pseudogap formation at ∼T*. The multiband superconductivity along with electron–hole compensation in FeSe may highlight a novel aspect of the BCS–BEC crossover physics. The crossover between the weak-coupling limit and strong-coupling limit provides important information for quantum bound states of interacting fermions. Here, Kasahara et al. report thermodynamic evidence for prevailing phase fluctuations of superconductivity, highlighting unusual normal state in the BCS-BEC crossover regime.
Collapse
|
4
|
Bossoni L, Romanó L, Canfield PC, Lascialfari A. Non-conventional superconducting fluctuations in Ba(Fe1-xRhx)2As2 iron-based superconductors. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 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] [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.
Collapse
Affiliation(s)
- L Bossoni
- Department of Physics, University of Pavia-CNISM, Via Bassi 6, I-27100 Pavia, Italy
| | | | | | | |
Collapse
|
5
|
Zhang JX, Zeches RJ, He Q, Chu YH, Ramesh R. Nanoscale phase boundaries: a new twist to novel functionalities. NANOSCALE 2012; 4:6196-6204. [PMID: 22948414 DOI: 10.1039/c2nr31174g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In functional materials, nanoscale phase boundaries exhibit exotic phenomena that are notably absent in their parent phases. Over the past two decades, much of the research into complex oxides (such as cuprate superconductors, CMR manganites and relaxor ferroelectrics) has demonstrated the key role that nanoscale inhomogeneities play in controlling the electronic and/or ionic structure of these materials. One of the key characteristics in such systems is the strong susceptibility to external perturbations, such as magnetic, electric and mechanical fields. A direct consequence of the accommodation of a large number of cationic substitutions in complex oxides is the emergence of a number of physical phenomena from essentially the same crystal framework. Recently, multiferroic behavior, which is characterized by the co-existence and potential coupling of multiple ferroic order parameters, has captured considerable worldwide research interest. The perovskite, BiFeO(3), exhibits robust ferroelectricity coupled with antiferromagnetism at room temperature. A rather unique feature of this material system is its ability to "morph" its ground state when an external mechanical constraint is imposed on it. A particularly striking example is observed when a large (~4 to 5%) compressive strain is imposed on a thin film through the epitaxial constraint from the underlying substrate. Under these conditions, the ground state rhombohedral phase transforms into a tetragonal-like (or a derivative thereof) phase with a rather large unit cell (c/a ratio of ~1.26). When the epitaxial constraint is partially relaxed by increasing the film thickness, this tetragonal-like phase evolves into a "mixed-phase" state, consisting of a nanoscale admixture of the rhombohedral-like phase embedded in the tetragonal-like phase. Such a system gives us a new pathway to explore a variety of mechanical, magnetic and transport phenomena in constrained dimensions. This article reviews our progress to date in this direction and also captures some possible areas of future research. We use the electromechanical response and the magnetic properties as examples to illustrate that its novel functionalities are intrinsically due to the phase boundaries and not the constituent phases. The possible origin of the giant piezoelectric response and enhanced magnetic moment across the boundaries is proposed based on the flexoelectric and flexomagnetic effects.
Collapse
Affiliation(s)
- J X Zhang
- Department of Physics, University of California, Berkeley, California 94720, USA.
| | | | | | | | | |
Collapse
|
6
|
Hall D, Goodrich RG, Grenier CG, Kumar P, Chaparala M, Norton ML. Magnetization measurements on single crystals of superconducting Ba0.6K0.4BiO3. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13642810008218340] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Donavan Hall
- a National High Magnetic Field Laboratory , Florida State University , Tallahassee , Florida , 32306-4005 , USA
| | - R. G. Goodrich
- b Department of Physics and Astronomy , Louisiana State University , Baton Rouge , Louisiana , 70803-4001 , USA
| | - C. G. Grenier
- b Department of Physics and Astronomy , Louisiana State University , Baton Rouge , Louisiana , 70803-4001 , USA
| | - Pradeep Kumar
- c Department of Physics , University of Florida , Gainesville , Florida , 32611-8440 , USA
| | - Murali Chaparala
- d Department of Physics , University of Virginia , Charlottesville , Virginia , 22901 , USA
| | - M. L. Norton
- e Department of Chemistry , Marshall University , Huntington , West Virginia , 25755-2520 , USA
| |
Collapse
|
7
|
Cabo L, Mosqueira J, Vidal F. Comment on "Field-enhanced diamagnetism in the pseudogap state of the cuprate Bi(2)Sr(2)CaCu(2)O(8+delta) superconductor in an intense magnetic field". PHYSICAL REVIEW LETTERS 2007; 98:119701; author reply 119702. [PMID: 17501098 DOI: 10.1103/physrevlett.98.119701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2006] [Indexed: 05/15/2023]
Affiliation(s)
- Lucía Cabo
- LBTS Universidade de Santiago de Compostela E-15782, Spain
| | | | | |
Collapse
|
8
|
Wang Y, Li L, Naughton MJ, Gu GD, Uchida S, Ong NP. Field-enhanced diamagnetism in the pseudogap state of the cuprate Bi2Sr2CaCu2O(8+delta) superconductor in an intense magnetic field. PHYSICAL REVIEW LETTERS 2005; 95:247002. [PMID: 16384409 DOI: 10.1103/physrevlett.95.247002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2005] [Indexed: 05/05/2023]
Abstract
In hole-doped cuprates, Nernst experiments imply that the superconducting state is destroyed by spontaneous creation of vortices which destroy phase coherence. Using torque magnetometry on Bi2Sr2CaCu2O(8+delta), we uncover a field-enhanced diamagnetic signal M above the transition temperature Tc that increases with applied field to 32 Tesla and scales just like the Nernst signal. The magnetization results above Tc distinguish M from conventional amplitude fluctuations and strongly support the vortex scenario for the loss of phase coherence at Tc.
Collapse
Affiliation(s)
- Yayu Wang
- Department of Physics, Princeton University, New Jersey 08544, USA
| | | | | | | | | | | |
Collapse
|
9
|
Blanchard S, Klein T, Marcus J, Joumard I, Sulpice A, Szabo P, Samuely P, Jansen AGM, Marcenat C. Anomalous magnetic field dependence of the thermodynamic transition line in the isotropic superconductor (K,Ba)BiO3. PHYSICAL REVIEW LETTERS 2002; 88:177201. [PMID: 12005780 DOI: 10.1103/physrevlett.88.177201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2001] [Indexed: 05/23/2023]
Abstract
Thermodynamic (specific heat, reversible magnetization, tunneling spectroscopy) and transport measurements have been performed on high quality (K,Ba)BiO3 single crystals. The temperature dependence of the magnetic field H(C(p)) corresponding to the onset of the specific heat anomaly presents a clear positive curvature. H(C(p)) is significantly smaller than the field H(Delta) for which the superconducting gap vanishes but is closely related to the irreversibility line deduced from transport data. Moreover, the temperature dependence of the reversible magnetization presents a strong deviation from the Ginzburg-Landau theory emphasizing the peculiar nature of the superconducting transition in this material.
Collapse
Affiliation(s)
- S Blanchard
- Laboratoire d'Etudes des Propriétés Electroniques des Solides, Centre National de la Recherche Scientifique, BP 166, F-38042 Grenoble Cedex 9, France
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Angst M, Puzniak R, Wisniewski A, Jun J, Kazakov SM, Karpinski J, Roos J, Keller H. Temperature and field dependence of the anisotropy of MgB2. PHYSICAL REVIEW LETTERS 2002; 88:167004. [PMID: 11955251 DOI: 10.1103/physrevlett.88.167004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2001] [Indexed: 05/23/2023]
Abstract
The anisotropy gamma of the superconducting state of high quality single crystals of MgB2 was determined, using torque magnetometry with two different methods. The anisotropy of the upper critical field was found to be temperature dependent, decreasing from gamma approximately 6 at 15 K to 2.8 at 35 K. Reversible torque data near T(c) reveal a field dependent anisotropy, increasing nearly linearly from gamma approximately equal to 2 in zero field to 3.7 in 10 kOe. The unusual temperature dependence is a true bulk property and can be explained by nonlocal effects of anisotropic pairing and/or the k--> dependence of the effective mass tensor.
Collapse
Affiliation(s)
- M Angst
- Solid State Physics Laboratory ETH, 8093 Zürich, Switzerland.
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Li D, Rosenstein B. Precision calculation of magnetization and specific heat of vortex liquids and solids in type-II superconductors. PHYSICAL REVIEW LETTERS 2001; 86:3618-3621. [PMID: 11328037 DOI: 10.1103/physrevlett.86.3618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2000] [Indexed: 05/23/2023]
Abstract
A new systematic calculation of magnetization and specific heat contributions of vortex liquids and solids is presented. We develop an optimized perturbation theory for the Ginzburg-Landau description of thermal fluctuations effects in the vortex liquids. The expansion is convergent in contrast to the conventional high temperature expansion which is asymptotic. In the solid phase we calculate the first two orders which are already quite accurate. The results are in good agreement with existing Monte Carlo simulations and experiments. Limitations of various nonperturbative and phenomenological approaches are noted. In particular, we show that there is no exact intersection point of the magnetization curves.
Collapse
Affiliation(s)
- D Li
- National Center for Theoretical Sciences and Electrophysics Department, National Chiao Tung University, Hsinchu 30050, Taiwan, Republic of China
| | | |
Collapse
|
12
|
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. PHYSICAL REVIEW. B, CONDENSED 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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
13
|
Herrmann J, Almasan CC, Dickey RP, Maple MB, Jiang W, Mao SN, Greene RL. Magnetoresistivity of thin films of the electron-doped high-Tc superconductor Nd1.85Ce0.15CuO4+/- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:3610-3616. [PMID: 9986267 DOI: 10.1103/physrevb.54.3610] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
14
|
Pierson SW. Length-scale-dependent layer decoupling and critical fluctuations in high-temperature superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:688-692. [PMID: 9984305 DOI: 10.1103/physrevb.54.688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
15
|
Koike Y, Takabayashi T, Noji T, Nishizaki T, Kobayashi N. Fourfold symmetry in the ab plane of the upper critical field for single-crystal Pb2Sr2Y0.62Ca0.38Cu3O8: Evidence for dx2-y2 pairing in a high-Tc superconductor. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R776-R779. [PMID: 9985432 DOI: 10.1103/physrevb.54.r776] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
16
|
Welp U, Fendrich JA, Kwok WK, Crabtree GW, Veal BW. Thermodynamic evidence for a flux line lattice melting transition in YBa2 Cu3O7- delta. PHYSICAL REVIEW LETTERS 1996; 76:4809-4812. [PMID: 10061386 DOI: 10.1103/physrevlett.76.4809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
17
|
Mosqueira J, Miramontes EG, Torrón C, Campá JA, Rasines I, Vidal F. Thermal fluctuation effects on the magnetization above and below the superconducting transition in Bi2Sr2CaCu2O8 crystals in the weak magnetic field limit. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:15272-15280. [PMID: 9983324 DOI: 10.1103/physrevb.53.15272] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
18
|
Jeandupeux O, Schilling A, Ott HR. Scaling of the specific heat and magnetization of YBa2Cu3O7 in magnetic fields up to 7 T. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:12475-12480. [PMID: 9982881 DOI: 10.1103/physrevb.53.12475] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
19
|
Wanka S, Beckmann D, Wosnitza J, Balthes E, Schweitzer D, Strunz W, Keller HJ. Critical fields and mixed-state properties of the layered organic superconductor kappa -(BEDT-TTF)2I3. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:9301-9309. [PMID: 9982432 DOI: 10.1103/physrevb.53.9301] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
20
|
Kim MS, Lee SI, Yu SC, Hur NH. Three-dimensional superconducting behavior and thermodynamic parameters of HgBa2Ca0.86Sr0.14Cu2O6- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:9460-9465. [PMID: 9982452 DOI: 10.1103/physrevb.53.9460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
21
|
Klein T, Baril L, Escribe-Filippini C, Marcus J, Jansen AG. Flux motion and phase transitions in superconducting (K,Ba)BiO3 single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:9337-9340. [PMID: 9982435 DOI: 10.1103/physrevb.53.9337] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
22
|
Vulcanescu V, Janossy B, Batail P, Fruchter L. Magnetization and Hc2 of a kappa -(BEDT-TTF)2Cu. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:2590-2593. [PMID: 9983765 DOI: 10.1103/physrevb.53.2590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
23
|
Xue YY, Cao Y, Xiong Q, Chen F, Chu CW. Vortex fluctuations and interlayer coupling in cuprates. PHYSICAL REVIEW. B, CONDENSED 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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
24
|
Sásik R, Stroud D. First-order vortex lattice melting and magnetization of YBa2Cu3O7- delta. PHYSICAL REVIEW LETTERS 1995; 75:2582-2585. [PMID: 10059348 DOI: 10.1103/physrevlett.75.2582] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
25
|
Roulin M, Junod A, Muller J. Comment on "3D X-Y Scaling of the Specific Heat of YBa2Cu3O7- delta Single Crystals". PHYSICAL REVIEW LETTERS 1995; 75:1869. [PMID: 10060413 DOI: 10.1103/physrevlett.75.1869] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
26
|
Vulcanescu V, Lenoir C, Batail P, Fruchter L. High-field fluctuations of a kappa -(BEDT-TTF)2Cu. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:471-475. [PMID: 9979623 DOI: 10.1103/physrevb.52.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
27
|
Holm W, Eltsev Y, Rapp Ö. Paraconductivity along the a and b axes in YBa2Cu3O7- delta single crystals. PHYSICAL REVIEW. B, CONDENSED 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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
28
|
Howson MA, Overend N, Lawrie ID, Salamon MB. Three-dimensional XY scaling of the resistivity of YBa2Cu3O7- delta single crystals. PHYSICAL REVIEW. B, CONDENSED 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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
29
|
Wahl A, Maignan A, Martin C, Hardy V, Provost J, Simon C. Superconducting fluctuations in Tl-based single crystals: Evidence of universal features and derivation of basic parameters. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:9123-9128. [PMID: 9977554 DOI: 10.1103/physrevb.51.9123] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
30
|
Ukrainczyk I, Dulcic A. Superconducting fluctuations in the microwave conductivity of YBa2Cu3O7- delta single crystals. PHYSICAL REVIEW. B, CONDENSED 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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
31
|
Sok J, Xu M, Chen W, Suh BJ, Gohng J, Finnemore DK, Kramer MJ, Schwartzkopf LA, Dabrowski B. Reversible magnetization, critical fields, and vortex structure in grain-aligned YBa2Cu4O8. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:6035-6040. [PMID: 9979520 DOI: 10.1103/physrevb.51.6035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
32
|
Wosnitza J, Liu X, Schweitzer D, Keller HJ. Specific heat of the organic superconductor kappa -(BEDT-TTF)2I3. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:12747-12751. [PMID: 9975440 DOI: 10.1103/physrevb.50.12747] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
33
|
Blatter G, Ivlev BI. Quantum statistical mechanics of vortices in high-temperature superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:10272-10286. [PMID: 9975110 DOI: 10.1103/physrevb.50.10272] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
34
|
Lawrie ID. Scaling in high-temperature superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:9456-9462. [PMID: 9974998 DOI: 10.1103/physrevb.50.9456] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
35
|
Pradhan AK, Roy SB, Chaddah P, Chen C, Wanklyn BM. Fluctuation phenomena in excess conductivity and magnetization of single-crystal Bi2Sr2CaCu2O8+y. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:7180-7183. [PMID: 9974683 DOI: 10.1103/physrevb.50.7180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
36
|
Ri H, Gross R, Gollnik F, Beck A, Huebener RP, Wagner P, Adrian H. Nernst, Seebeck, and Hall effects in the mixed state of YBa2Cu3O7- delta and Bi2Sr2CaCu2O8+x thin films: A comparative study. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:3312-3329. [PMID: 9976584 DOI: 10.1103/physrevb.50.3312] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
37
|
Lang M, Steglich F, Toyota N, Sasaki T. Fluctuation effects and mixed-state properties of the layered organic superconductors kappa -(BEDT-TTF)2Cu(NCS)2 and kappa -(BEDT-TTF)2Cu. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:15227-15234. [PMID: 10010630 DOI: 10.1103/physrevb.49.15227] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
38
|
Martinez JC, Bulaevskii LN, Brongersma S, Koshelev A, Perenboom JA, Menovsky AA, Kes PH. Equilibrium magnetization of a Bi2Sr2CaCu2Ox single crystal measured up to 20 T. PHYSICAL REVIEW LETTERS 1994; 72:3614-3617. [PMID: 10056244 DOI: 10.1103/physrevlett.72.3614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
39
|
Overend N, Howson MA, Lawrie ID. 3D X-Y scaling of the specific heat of YBa2Cu3O7- delta single crystals. PHYSICAL REVIEW LETTERS 1994; 72:3238-3241. [PMID: 10056142 DOI: 10.1103/physrevlett.72.3238] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
40
|
Torrón C, Díaz A, Pomar A, Veira JA, Vidal F. Measurements of fluctuation-induced diamagnetism above the superconducting transition in YBa2Cu3O7- delta single crystals in low magnetic fields: Comparison with paraconductivity. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:13143-13153. [PMID: 10010230 DOI: 10.1103/physrevb.49.13143] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
41
|
Jin R, Schilling A, Ott HR. Temperature dependence of the magnetization of a Bi2Sr2CaCu2O8+ delta single crystal close to Tc. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:9218-9221. [PMID: 10009711 DOI: 10.1103/physrevb.49.9218] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
42
|
Prost D, Lenoir C, Batail P, Campbell IA, Fruchter L. Flux creep and scaling of the critical current with field in the quantum regime for a kappa -(BEDT-TTF)2Cu(NCN)2Br single crystal. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:4023-4026. [PMID: 10011299 DOI: 10.1103/physrevb.49.4023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
43
|
Tesanovic Z, Andreev AV. Thermodynamic scaling functions in the critical region of type-II superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:4064-4075. [PMID: 10011304 DOI: 10.1103/physrevb.49.4064] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
44
|
|
45
|
Klein L, Yacoby ER, Yeshurun Y, Erb A, Müller-Vogt G, Breit V, Wühl H. Peak effect and scaling of irreversible properties in untwinned Y-Ba-Cu-O crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:4403-4406. [PMID: 10011357 DOI: 10.1103/physrevb.49.4403] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
46
|
Kopelevich Y, Moehlecke S, Torres JH. Flux-line-lattice melting in Bi2Sr2Ca2Cu3O10. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:1495-1498. [PMID: 10010473 DOI: 10.1103/physrevb.49.1495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
47
|
Samoilov AV. Fluctuations in the Hall conductivity and dynamics of the order parameter in YBa2Cu3O7- delta superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:1246-1249. [PMID: 10010433 DOI: 10.1103/physrevb.49.1246] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
48
|
Li Q, Suenaga M, Bulaevskii LN, Hikata T, Sato K. Thermodynamics of superconducting Bi2Sr2Ca2Cu3O10 in the critical fluctuation region near the Hc2(T) line. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:13865-13870. [PMID: 10007788 DOI: 10.1103/physrevb.48.13865] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
49
|
Blatter G, Ivlev B, Nordborg H. Vortex fluctuations in layered superconductors and thin films. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:10448-10456. [PMID: 10007322 DOI: 10.1103/physrevb.48.10448] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
50
|
Li Q, Shibutani K, Suenaga M, Shigaki I, Ogawa R. Critical fluctuations in the magnetization of Bi2Sr2CaCu2O8 near the Hc2(T) line. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:9877-9880. [PMID: 10007248 DOI: 10.1103/physrevb.48.9877] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|