STUDY OF THE MAGNETIC-PROPERTIES OF SINGLE-CRYSTAL BA0.6K0.4BIO3

被引：22

作者：

HUANG, ZJ ^{[1
]}

FANG, HH ^{[1
]}

XUE, YY ^{[1
]}

HOR, PH ^{[1
]}

CHU, CW ^{[1
]}

NORTON, ML ^{[1
]}

TANG, HY ^{[1
]}

机构：

[1] UNIV GEORGIA, DEPT CHEM, ATHENS, GA 30602 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 180卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0921-4534(91)90544-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic properties of single-crystal Ba0.6K0.4BiO3 were studied. The results show that this isotropic superconductor (cubic structure with T(c) approximately 32 K) exhibits irreversibility and relaxation properties similar to those observed in the layered, high temperature superconductors. For fields above 0.1 T, an irreversibility line B(irr) = B(irr) (0) (1-t)n with n = 3/2 and B(irr) (0) = 20 T is observed. The comparison among several superconducting systems with different anisotropies suggests that the irreversibility line is unlikely to be the melting line for the YBa2Cu3O7-delta.

引用

页码：331 / 336

页数：6

共 21 条

[1] THEORY OF SUPERCONDUCTIVITY
BARDEEN, J
COOPER, LN
SCHRIEFFER, JR
[J]. PHYSICAL REVIEW, 1957, 108 (05): : 1175 - 1204
[2] MAGNETIZATION OF HARD SUPERCONDUCTORS
BEAN, CP
[J]. PHYSICAL REVIEW LETTERS, 1962, 8 (06) : 250 - +
[3] THERMAL FLUCTUATION AND MELTING OF THE VORTEX LATTICE IN OXIDE SUPERCONDUCTORS
BRANDT, EH
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (10) : 1106 - 1109
[4] SUPERCONDUCTIVITY NEAR 30-K WITHOUT COPPER - THE BA0.6K0.4BIO3 PEROVSKITE
CAVA, RJ
BATLOGG, B
KRAJEWSKI, JJ
FARROW, R
RUPP, LW
WHITE, AE
SHORT, K
PECK, WF
KOMETANI, T
[J]. NATURE, 1988, 332 (6167) : 814 - 816
[5] DONIACH S, 1990, HIGH TEMPERATURE SUP, P406
[6] VORTEX-GLASS SUPERCONDUCTIVITY - A POSSIBLE NEW PHASE IN BULK HIGH-TC OXIDES
FISHER, MPA
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (12) : 1415 - 1418
[7] ARRAYS OF FLUXOIDS IN THE HIGH-TC SUPERCONDUCTORS AND THEIR PUTATIVE PHASE-TRANSITIONS
GAMMEL, PL
[J]. JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) : 4676 - 4681
[8] FLUX LATTICE MELTING IN HIGH-TC SUPERCONDUCTORS
HOUGHTON, A
PELCOVITS, RA
SUDBO, A
[J]. PHYSICAL REVIEW B, 1989, 40 (10): : 6763 - 6770
[9] A POSSIBLE NEW VORTEX PHASE-BOUNDARY IN YBA2CU3O7-DELTA
HUANG, ZJ
XUE, YY
HOR, PH
CHU, CW
[J]. PHYSICA C, 1991, 176 (1-3): : 195 - 202
[10] PINNING AND THERMAL FLUCTUATIONS OF A FLUX LINE IN HIGH-TEMPERATURE SUPERCONDUCTORS
INUI, M
LITTLEWOOD, PB
COPPERSMITH, SN
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (21) : 2421 - 2424

← 1 2 3 →