Positive curvature in the temperature dependence of H-c2 in KxBa1-xBiO3

被引：29

作者：

Gantmakher, VF ^{[1
]}

Klinkova, LA ^{[1
]}

Barkovskii, NV ^{[1
]}

Tsydynzhapov, GE ^{[1
]}

Wiegers, S ^{[1
]}

Geim, AK ^{[1
]}

机构：

[1] UNIV NIJMEGEN, HIGH FIELD MAGNET LAB, NL-6500 GL NIJMEGEN, NETHERLANDS

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.54.6133

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report an upward curvature in the temperature dependence of the upper critical field H-c2(T) in KxBa1-xBiO3 single crystals using ac-susceptibility measurements and magnetic fields up to 25 T. A possible role of Landau quantization in such uncommon behavior is discussed.

引用

页码：6133 / 6136

页数：4

共 27 条

[1] UPPER CRITICAL-FIELD OF BA1-XKXBIO3 SINGLE-CRYSTALS
AFFRONTE, M
MARCUS, J
ESCRIBEFILIPPINI, C
SULPICE, A
RAKOTO, H
BROTO, JM
OUSSET, JC
ASKENAZY, S
JANSEN, AGM
[J]. PHYSICAL REVIEW B, 1994, 49 (05) : 3502 - 3510
[2] Anshukova N. V., 1990, Soviet Physics - JETP, V70, P923
[3] DENSITY OF STATES AND ISOTOPE EFFECT IN BIO SUPERCONDUCTORS - EVIDENCE FOR NONPHONON MECHANISM
BATLOGG, B
CAVA, RJ
RUPP, LW
MUJSCE, AM
KRAJEWSKI, JJ
REMEIKA, JP
PECK, WF
COOPER, AS
ESPINOSA, GP
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (14) : 1670 - 1673
[4] EVIDENCE OF UPPER-CRITICAL-FIELD ENHANCEMENT IN K3C60 POWDERS
BOEBINGER, GS
PALSTRA, TTM
PASSNER, A
ROSSEINSKY, MJ
MURPHY, DW
MAZIN, II
[J]. PHYSICAL REVIEW B, 1992, 46 (09) : 5876 - 5879
[5] BULAEVSKII LN, 1987, JETP LETT+, V45, P526
[6] CREUSET F, 1985, PHYS LETT, V46, pL1079
[7] ANOMALIES IN THE IRREVERSIBILITY LINE AND UPPER CRITICAL-FIELD OF THE ELECTRON-DOPED SUPERCONDUCTOR SM1.85CE0.15CUO4-Y
DEANDRADE, MC
ALMASAN, CC
DALICHAOUCH, Y
MAPLE, MB
[J]. PHYSICA C, 1991, 184 (4-6): : 378 - 384
[8] DEANDRADE MC, 1990, PHYS REV LETT, V64, P599
[9] CRITICAL FIELDS AND FUNDAMENTAL LENGTHS IN A SUPERCONDUCTING ELECTRON-DOPED PR1.85CE0.15CUO4-Y SINGLE-CRYSTAL
FABREGA, L
MARTINEZ, B
FONTCUBERTA, J
OBRADORS, X
PINOL, S
[J]. PHYSICAL REVIEW B, 1992, 46 (09): : 5581 - 5587
[10] EFFECT OF ORBITAL QUANTIZATION ON CRITICAL FIELD OF TYPE-2 SUPERCONDUCTORS
GRUENBERG, LW
GUNTHER, L
[J]. PHYSICAL REVIEW, 1968, 176 (02): : 606 - +

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