IRREVERSIBILITY TEMPERATURE AND MEISSNER FRACTION IN HIGH-TEMPERATURE SUPERCONDUCTORS

被引：2
|
作者：
OTA, SB
RAPSON, GP
DEGROOT, PAJ
机构：
[1] Physics Department, Southampton University, Southampton
来源：
PHYSICA B | 1990年 / 165卷
关键词：
D O I：
10.1016/S0921-4526(09)80158-0
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Low field (<30mT) magnetisation measurements have been carried out on BSCCO and YBCO ceramics and on BSCCO single crystals. The Meissner fraction (MF) has been found to obey a power law: MF ∝ Hi-m where Hi is the internal field. The value of m is different for the different samples. The field range over which the power law holds and m increase with temperature. The irreversibility temperature (Ti) determined by a fixed criterion δM, obeys the relation: (Tc-Ti) ∝ Hin. In the case of BSCCO, n increases as δM increases. We argue that present flux pinning models do dot explain these results. © 1990, Elsevier Science Publishers B.V. (North-Holland). All rights reserved.
引用
收藏
页码：1145 / 1146
页数：2
相关论文
共 50 条
  • [21] High-temperature superconductors
    不详
    AMERICAN CERAMIC SOCIETY BULLETIN, 2006, 85 (02): : 4 - 4
  • [22] HIGH-TEMPERATURE SUPERCONDUCTORS
    CHU, PCW
    SCIENTIFIC AMERICAN, 1995, 273 (03) : 162 - 165
  • [23] HIGH-TEMPERATURE SUPERCONDUCTORS
    HUMPHREYS, CJ
    EAGLESHAM, DJ
    ALFORD, NM
    HARMER, MA
    BIRCHALL, JD
    INSTITUTE OF PHYSICS CONFERENCE SERIES, 1988, (93): : 217 - 222
  • [24] HIGH-TEMPERATURE SUPERCONDUCTORS
    HUMPHREYS, CJ
    EAGLESHAM, DJ
    ALFORD, NM
    HARMER, MA
    BIRCHALL, JD
    EUREM 88, VOLS 1-3: TUTORIALS, INSTRUMENTATION AND TECHNIQUES / PHYSICS AND MATERIALS / BIOLOGY, 1988, 93 : 217 - 222
  • [25] HIGH-TEMPERATURE SUPERCONDUCTORS
    BYBOKAS, J
    HAMMOND, B
    MICROWAVE JOURNAL, 1990, 33 (02) : 127 - &
  • [26] HIGH-TEMPERATURE SUPERCONDUCTORS
    ONDREY, G
    CHEMICAL ENGINEERING, 1994, 101 (01) : 43 - +
  • [27] HIGH-TEMPERATURE SUPERCONDUCTORS
    MOTT, BNF
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 1994, 184 : 1 - 10
  • [28] High-temperature superconductors
    Lieber, CM
    Yang, PD
    SCIENCE, 1997, 277 (5334) : 1909 - 1910
  • [29] HIGH-TEMPERATURE SUPERCONDUCTORS
    WEST, AR
    BRITISH CERAMIC TRANSACTIONS AND JOURNAL, 1990, 89 (01): : R7 - R7
  • [30] HIGH-TEMPERATURE SUPERCONDUCTORS
    BONTEMPS, N
    COMBESCOT, R
    MONOD, P
    RECHERCHE, 1992, 23 (240): : 180 - 187
12345