Magnetic properties of the Bi1.95Sr2.05-xLaxCuOy (Bi-2201) superconducting phase

被引:9
|
作者
Triscone, G
Chae, MS
de Andrade, MC
Maple, MB
机构
[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1997年 / 290卷 / 3-4期
关键词
Bi-2201; magnetization; mixed-state; fluctuation; penetration depth; upper critical field;
D O I
10.1016/S0921-4534(98)80032-4
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have investigated the reversible mixed-state magnetization M of three lanthanum substituted Bi1.95Sr2.05-xLaxCuOy?,, (Bi-2201) ceramic samples having different critical temperatures T-c ranging from 20.0 to 35.5 K. As for the Bi2Sr2CaCu2O8+delta (Bi-2212) phase, we found that anisotropy of Bi-2201 is large. A manifestation of this anisotropy is the field independent magnetization M* observed at a temperature T*. In the framework of the London model, and including thermal fluctuations of vortices, we found for the temperature dependence of the penetration depth lambda(ab)(T) = lambda(ab)(0)[1-(T/T-c0)(n)](-1/2), with n approximate to 1.7 and lambda(ab)(T = 0) approximate to 4000 Angstrom. The estimated upper critical fields mu(0),H-c2,H-c,,, are of the order of 10 T. We observe a peculiar negative slope partial derivative M/partial derivative T at low temperature and sufficiently high external magnetic field. This feature seems to he a characteristic of the Bi-2201 phase. However, we do not know whether it is associated with the superconducting mixed-state. A small amount of magnetic impurities could also be responsible for this behavior. Finally, the behavior of the reversible magnetization of the Bi-2201 samples investigated, which are situated at the optimal and in the overdoped region, did not indicate any unusual temperature dependence for the upper critical field H-c2,H-c. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:188 / 205
页数:18
相关论文
共 50 条
  • [21] Substitution effect of Sr2+by Ca2+ on structure and superconducting properties of Bi2Sr1.>La0.4CuO6+δ (Bi-2201) ceramics
    Boudjaoui, S.
    Amira, A.
    Mahamdioua, N.
    Altintas, S.
    Varilci, A.
    Terzioglu, C.
    PHYSICA B-CONDENSED MATTER, 2018, 531 : 58 - 63
  • [22] Effect of Cd substitution for Bi on superconductivity of the Bi-2201 phase in the Bi-La-Ca-Cu-O system
    Sasakura, H
    Tagaya, K
    Akagi, Y
    Oka, T
    Tsukui, S
    Adachi, M
    Oshima, R
    JOURNAL OF SUPERCONDUCTIVITY, 2001, 14 (05): : 581 - 585
  • [23] Correlation between oxygen excess density and critical transition temperature in superconducting Bi-2201, Bi-2212 and Bi-2223
    Roeser, H. P.
    Hetfleisch, F.
    Huber, F. M.
    von Schoenermark, M. F.
    Stepper, M.
    Moritz, A.
    Nikoghosyan, A. S.
    ACTA ASTRONAUTICA, 2008, 63 (11-12) : 1372 - 1375
  • [24] 缺Sr的Bi-2201相材料的微结构研究
    许存义
    毛志强
    左健
    喻伟杰
    朱警生
    张裕恒
    物理学报, 1995, (04) : 640 - 645
  • [25] Thermoelectric power anomalies induced by the lattice instability in doped Bi-2201 phase
    Mao, ZQ
    Xu, GJ
    Wan, L
    Shi, L
    Wang, RP
    Fan, CG
    Zhou, GE
    Zhang, YH
    PHYSICA C, 1997, 282 : 1261 - 1262
  • [26] Quench of the Superconductivity in the Yttrium-Doped Compounds Bi2Sr1.6-xLa0.4YxCuO6+δ of the Bi-2201 Phase
    Boudjaoui, S.
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2022, 35 (09) : 2301 - 2309
  • [27] Substitution of Sr2+ by Eu3+ in Bi-2201 ceramics, effects on structure and physical properties
    Amira, Abderrezak
    Bouaicha, F.
    Boussouf, N.
    Mosbah, M. F.
    SOLID STATE SCIENCES, 2010, 12 (05) : 699 - 705
  • [28] Hydrodynamical description for magneto-transport in the strange metal phase of Bi-2201
    Amoretti, Andrea
    Meinero, Martina
    Brattan, Daniel K.
    Caglieris, Federico
    Giannini, Enrico
    Affronte, Marco
    Hess, Christian
    Buechner, Bernd
    Magnoli, Nicodemo
    Putti, Marina
    PHYSICAL REVIEW RESEARCH, 2020, 2 (02):
  • [29] Negative out-of-plane magnetoresistance in Bi-2201: superconducting fluctuations or peculiarity of the normal state?
    Lavrov, AN
    Ando, Y
    Ono, S
    PHYSICA C, 2000, 341 : 1579 - 1580
  • [30] DRAMATIC CHANGES IN THE BI-VALENCE AND CU-VALENCE OF BI-2201 PHASE ANNEALING IN ABSENCE OF OXYGEN
    MURAKOSHI, Y
    KAMBE, S
    KAWAI, M
    PHYSICA C, 1991, 178 (1-3): : 71 - 74