Anomalous thermal effect of Y1-xCaxBa2Cu3Oy

被引：0
作者：
Zhang, L [1 ]
Sun, XF [1 ]
Rui, XF [1 ]
Zhang, H [1 ]
机构：
[1] Peking Univ, Dept Phys, Phys Mat Lab, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2005年 / 19卷 / 1-3期
关键词：
thermal analysis; superconductivity; Y1-xCaxBa2Cu3Oy;
D O I：
10.1142/S0217979205028487
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
It is found in oxygen there are a weight loss and an endothermal anomaly in compound of Y1-xCaxBa2Cu3Oy starting at about 320 degrees C, while in nitrogen at about 370 degrees C and a mixed atmosphere, N-2(50%)+O-2(50%), at about 350 degrees C. The results are different from those in undoped YBa2Cu3Oy and some doped systems. It is suggested that Ca prefers a sixfold coordination, which causes the oxygen loss in Cu(2)-O plane and the weight and heat anomalies at different temperature in different atmospheres. The oxygen loss in Cu(2)-O plane is also responsible for T-C suppression in Y1-xCaxBa2Cu3Oy.
引用
收藏
页码：315 / 317
页数：3
相关论文
共 50 条
  • [21] Transport and interface properties in ramp-type Josephson junctions with a graded Y1-xPrxBa2Cu3Oy barrier
    Gao, J
    Sun, JL
    Yang, J
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 436 (02): : 86 - 92
  • [22] Growth and hole density control through equilibrium oxygen annealing of optimally doped Y1-xCaxBa2Cu3O7-δ single crystals
    Wu, Zheng
    Hor, Pei-Herng
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2009, 22 (10)
  • [23] Combinative energy and properties of Y1-xSrxBa2-xLaxCu3Oy system
    Guo, C. Q.
    Sun, X. F.
    Jin, W. T.
    Hao, S. J.
    Guo, W.
    Zhang, H.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2013, 493 : 63 - 64
  • [24] Effect of Ca substitution at the Tm site in the TmBa2Cu3Oy superconductor
    Lee, Y. H.
    Chen, Y. J.
    Pan, J. J.
    Ling, D. C.
    Kao, H. -C. I.
    LOW TEMPERATURE PHYSICS, PTS A AND B, 2006, 850 : 485 - +
  • [25] COMPLEX SUSCEPTIBILITY OF YBA2(CU1-XCOX)3OY
    MAZAKI, H
    KATSUYAMA, S
    YASUOKA, H
    KOSUGE, K
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1991, 30 (07): : 1386 - 1389
  • [26] Synthesis and Processing of Doped Hg1Ba2Ca2Cu3Oy Superconductors
    P. V. P. S. S. Sastry
    J. Schwartz
    Journal of Superconductivity, 1998, 11 : 595 - 602
  • [27] Synthesis and processing of doped Hg1Ba2Ca2Cu3Oy superconductors
    Sastry, PVPSS
    Schwartz, J
    JOURNAL OF SUPERCONDUCTIVITY, 1998, 11 (05): : 595 - 602
  • [28] The effect of processing conditions on the properties of spray dried Nd1Ba2Cu3Oy/Ag composite superconductors
    Van Driessche, I
    Schoofs, B
    Bruneel, E
    Hoste, S
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (06) : 1823 - 1826
  • [29] Comparison of Tc-depression of Pr at Y- and Ba-sites in YBa2Cu3Oy
    Tang, WH
    Gao, J
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1999, 315 (1-2): : 59 - 65
  • [30] SiO2 nanoparticles addition effect on microstructure and pinning properties in YBa2Cu3Oy
    Ben Salem, M. K.
    Hannachi, E.
    Slimani, Y.
    Hanuita, A.
    Zouaoui, M.
    Bessais, L.
    Ben Salem, M.
    Ben Azzouz, F.
    CERAMICS INTERNATIONAL, 2014, 40 (03) : 4953 - 4962
12345