Thermodynamic phase diagram of the cubic (K,Ba)BiO3 superconductor

S. Blanchard; C. Marcenat; J. Marcus; T. Klein; A. Sulpice

doi:10.1016/S0921-4534(01)01240-0

Thermodynamic phase diagram of the cubic (K,Ba)BiO₃ superconductor

S. Blanchard
, C. Marcenat
, J. Marcus
, T. Klein
, A. Sulpice

École Polytechnique

Laboratoire d'Etudes des Propriétés Electroniques des Solides
Centre national de la recherche scientifique
Département de Recherche Fondamentale sur la Matière Condensée
Univ. Joseph Fourier-Grenoble 1
Centre de Recherches Sur Les Très Basses Températures

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Specific heat, transport and reversible magnetization measurements have been performed on high quality (K,Ba)BiO₃ single crystals (T_c ∼ 31 K). Calorimetric measurements up to 16 T show that the transition line between the superconducting and normal states has a strong anomalous positive curvature. The reversible magnetization deviates strongly from the standard London model above 0.8T_c emphasizing the original nature of the superconducting transition in this system.

Original language	English
Pages (from-to)	193-195
Number of pages	3
Journal	Physica C: Superconductivity and its Applications
Volume	369
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4534(01)01240-0
Publication status	Published - 15 Mar 2002

Keywords

Phase diagram
Vortex matter

Access to Document

10.1016/S0921-4534(01)01240-0

Cite this

@article{b01f9ecf031f49b1bf0474d9bf284e8a,

title = "Thermodynamic phase diagram of the cubic (K,Ba)BiO3 superconductor",

abstract = "Specific heat, transport and reversible magnetization measurements have been performed on high quality (K,Ba)BiO3 single crystals (Tc ∼ 31 K). Calorimetric measurements up to 16 T show that the transition line between the superconducting and normal states has a strong anomalous positive curvature. The reversible magnetization deviates strongly from the standard London model above 0.8Tc emphasizing the original nature of the superconducting transition in this system.",

keywords = "Phase diagram, Vortex matter",

author = "S. Blanchard and C. Marcenat and J. Marcus and T. Klein and A. Sulpice",

year = "2002",

month = mar,

day = "15",

doi = "10.1016/S0921-4534(01)01240-0",

language = "English",

volume = "369",

pages = "193--195",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "1-4",

}

TY - JOUR

T1 - Thermodynamic phase diagram of the cubic (K,Ba)BiO3 superconductor

AU - Blanchard, S.

AU - Marcenat, C.

AU - Marcus, J.

AU - Klein, T.

AU - Sulpice, A.

PY - 2002/3/15

Y1 - 2002/3/15

N2 - Specific heat, transport and reversible magnetization measurements have been performed on high quality (K,Ba)BiO3 single crystals (Tc ∼ 31 K). Calorimetric measurements up to 16 T show that the transition line between the superconducting and normal states has a strong anomalous positive curvature. The reversible magnetization deviates strongly from the standard London model above 0.8Tc emphasizing the original nature of the superconducting transition in this system.

AB - Specific heat, transport and reversible magnetization measurements have been performed on high quality (K,Ba)BiO3 single crystals (Tc ∼ 31 K). Calorimetric measurements up to 16 T show that the transition line between the superconducting and normal states has a strong anomalous positive curvature. The reversible magnetization deviates strongly from the standard London model above 0.8Tc emphasizing the original nature of the superconducting transition in this system.

KW - Phase diagram

KW - Vortex matter

U2 - 10.1016/S0921-4534(01)01240-0

DO - 10.1016/S0921-4534(01)01240-0

M3 - Article

AN - SCOPUS:0037086896

SN - 0921-4534

VL - 369

SP - 193

EP - 195

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-4