MEISSNER EFFECT, CRITICAL FIELDS, AND SUPERCONDUCTING PARAMETERS OF YBA2CU3O7-DELTA

被引：24
作者：
PEREZRAMIREZ, JG [1 ]
BABERSCHKE, K [1 ]
CLARK, WG [1 ]
机构：
[1] FREE UNIV BERLIN,INST ATOM & FESTKORPERPHYS,D-1000 BERLIN 33,FED REP GER
来源：
SOLID STATE COMMUNICATIONS | 1988年 / 65卷 / 08期
关键词：
YTTRIUM COMPOUNDS - Magnetic Properties;
D O I：
10.1016/0038-1098(88)90517-0
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Magnetic properties of superconducting YBa//2Cu//3O//7// minus // delta are reported. The measured critical fields are H//c//l(0) equals 750 G, H//c(0) equals 23. 4 KG, and H//c//2(0) equals 880 kG. From the slope of the magnetization curve and critical field ratio the value kappa approximately equals 25 is obtained for the Ginzburg-Landau parameter. The coherence lengths are xi (0) equals 19 A and lambda (0) equals 485 A. We demonstrate a high sensitivity of the magnetic response to small applied fields. At 1 G, our sample has a nearly complete Meissner effect. We attribute this sensitivity mainly to the anisotropy of H//c//l and its small value close to T//c. The relation between H//c and T//c indicates an ordinary electron-phonon coupling strength.
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页码：845 / 848
页数：4
相关论文
共 13 条
  • [1] POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM
    BEDNORZ, JG
    MULLER, KA
    [J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02): : 189 - 193
  • [2] CAVA RJ, 1987, JUL C HIGH TC SUP TR
  • [3] COMPARATIVE-STUDY OF SUPERCONDUCTING ENERGY GAPS IN ORIENTED FILMS AND POLYCRYSTALLINE BULK SAMPLES OF Y-BA-CU-O
    COLLINS, RT
    SCHLESINGER, Z
    KOCH, RH
    LAIBOWITZ, RB
    PLASKETT, TS
    FREITAS, P
    GALLAGHER, WJ
    SANDSTROM, RL
    DINGER, TR
    [J]. PHYSICAL REVIEW LETTERS, 1987, 59 (06) : 704 - 707
  • [4] de Gennes P. G., 1966, SUPERCONDUCTIVITY ME
  • [5] DIRECT OBSERVATION OF ELECTRONIC ANISOTROPY IN SINGLE-CRYSTAL Y1BA2CU3O7-X
    DINGER, TR
    WORTHINGTON, TK
    GALLAGHER, WJ
    SANDSTROM, RL
    [J]. PHYSICAL REVIEW LETTERS, 1987, 58 (25) : 2687 - 2690
  • [6] STRUCTURE, RESISTIVITY, CRITICAL-FIELD, SPECIFIC-HEAT JUMP AT TC, MEISSNER EFFECT, AC AND DC SUSCEPTIBILITY OF THE HIGH-TC SUPERCONDUCTOR YBA2CU3O7
    JUNOD, A
    BEZINGE, A
    GRAF, T
    JORDA, JL
    MULLER, J
    ANTOGNAZZA, L
    CATTANI, D
    CORS, J
    DECROUX, M
    FISCHER, O
    BANOVSKI, M
    GENOUD, P
    HOFFMANN, L
    MANUEL, AA
    PETER, M
    WALKER, E
    FRANCOIS, M
    YVON, K
    [J]. EUROPHYSICS LETTERS, 1987, 4 (02): : 247 - 252
  • [7] ADDITION
    JUNOD, A
    [J]. EUROPHYSICS LETTERS, 1987, 4 (05): : 637 - 637
  • [8] DIAMAGNETIC SHIELDING AND MEISSNER EFFECT IN THE HIGH-TC SUPERCONDUCTOR SR0.2LA1.8CUO4
    MALETTA, H
    MALOZEMOFF, AP
    CRONEMEYER, DC
    TSUEI, CC
    GREENE, RL
    BEDNORZ, JG
    MULLER, KA
    [J]. SOLID STATE COMMUNICATIONS, 1987, 62 (05) : 323 - 326
  • [9] TUNNELING SPECTROSCOPY OF HIGH-TC OXIDE SUPERCONDUCTORS WITH A SCANNING TUNNELING MICROSCOPE
    NG, KW
    PAN, S
    DELOZANNE, AL
    PANSON, AJ
    TALVACCHIO, J
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1987, 26 : 993 - 994
  • [10] Parks RD., 1969, SUPERCONDUCTIVITY
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