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
  • [31] Effect of MgB2 additives on structure, electrical and thermal properties of Eu1Ba2Cu3O7
    Akduran, Nurcan
    [J]. MATERIALS SCIENCE-POLAND, 2018, 36 (04): : 609 - 615
  • [32] Bond Angle Study of Self-compensating Y1−xCaxBa2−xLaxCu3Oz System
    W. T. Jin
    S. J. Hao
    X. J. Zhang
    Y. Zhao
    H. Zhang
    [J]. Journal of Superconductivity and Novel Magnetism, 2010, 23 : 847 - 850
  • [33] Relationship between biaxial orientation degrees and grain in magnetically aligned (Y1-xErx)Ba2Cu3Oy powders with twin microstructures
    Horii, Shigeru
    Fujioka, Shotaro
    Doi, Toshiya
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS, 2018, 57 (09)
  • [34] SUPERCONDUCTIVITY AT 103 K IN CDBA2(CA-0.7)Y0.3CU2OY
    BALCHEV, N
    LOVCHINOV, V
    GATTEF, E
    STANEVA, A
    KONSTANTINOV, K
    PIROV, J
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 1995, 8 (03): : 329 - 331
  • [35] Electrical transport properties of YBa2Cu3Oy implanted by CdS nanoparticles: nanoparticle size effect
    Hkiri, Khaoula
    Mohamed, Hamza Elsayed Ahmed
    Shahzad, Nimra
    Bouchoucha, Ines
    Maaza, Malik
    Zouaoui, Mouldi
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2023, 34 (26)
  • [36] Crystallographic study of component mixture getting CeBa2Cu3Oy
    Stergiou, A.
    Yilmaz, S.
    Stergiou, C.
    Eggonopoulos-Papadopoulos, B.
    [J]. JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2007, 9 (06): : 1779 - 1784
  • [37] Superconducting and structural effects of grinding upon YBa2Cu3Oy
    Chen, WM
    Jiang, SS
    Guo, YC
    Li, LY
    Qiu, L
    Ding, SY
    Shen, K
    Dou, SX
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1998, 306 (1-2): : 143 - 148
  • [38] Specific heat study on CuxBa2Ca3Cu4Oy
    Tanaka, Y
    Iyo, A
    Shirakawa, N
    Ariyama, M
    Tokumoto, M
    Ikeda, SI
    Ihara, H
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2001, 70 (02) : 329 - 332
  • [39] SUPERCONDUCTIVITY AT DIFFERENT T-C IN CDBA2CA2CU3OY
    BALCHEV, N
    LOVCHINOV, V
    GATTEF, E
    STANEVA, A
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 1995, 8 (03): : 333 - 335
  • [40] An anomalous dip in thermoelectric power of Nd1-xPrxBa2Cu3O7-δ
    Ghorbani, SR
    Rapp, Ö
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 388 : 351 - 352
12345