Annealing effect on high-pressure oxygen for (As0.33Cu0.67)Sr2YCu2Oy

被引：0
|
作者：
Sato, E [1 ]
Kambe, S [1 ]
Ishii, O [1 ]
机构：
[1] Yamagata Univ, Grad Sch Sci & Engn, Yamagata 9928510, Japan
来源：
PHYSICA C | 2001年 / 357卷
关键词：
(As0.13Cu0.67)Sr2YCu2Oy; crystal structure; physical properties;
D O I：
10.1016/S0921-4534(01)00261-1
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigated the new layered copper oxide, (As0.33Cu0.67)Sr2YCu2O7.17. It had an anomalous change in resistivity below 60 K. However, resistivity and magnetic susceptibility measurements showed that (As0.33Cu0.67)Sr2YCu2O7.17 was not superconducting but semiconducting. From the X-ray diffraction data, it was found that nonsuperconductivity of (As0.33Cu0.67)Sr2YCu2O7.17 comes from the existence of two oxygen sites in the (As, Cu)O-7.17 layer. In order to increase the oxygen content, annealing under high oxygen pressure (450 atm) at 400 degreesC for 19 h was carried out. The specimen did not show superconductivity yet but showed a metallic property together with a drastic decrease in resistivity. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：397 / 400
页数：4
相关论文
共 50 条
  • [21] HIGH-PRESSURE SYNTHESIS OF SUPERCONDUCTING YSR2CU3OY
    OKAI, B
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (12): : L2180 - L2182
  • [22] High-pressure synthesis and heat treatments of (Hg1-xBix)Sr2Ca2Cu3Oy
    Kandyel, E.
    Wu, X.-J.
    Adachi, S.
    Tajima, S.
    Physica C: Superconductivity and its Applications, 1999, 319 (03): : 209 - 218
  • [23] High-pressure synthesis and heat treatments of (Hg1-xBix)Sr2Ca2Cu3Oy
    Kandyel, E
    Wu, XJ
    Adachi, S
    Tajima, S
    PHYSICA C, 1999, 319 (3-4): : 209 - 218
  • [24] HIGH-PRESSURE SYNTHESIS OF MO-CONTAINING 1212 AND 1222 COMPOUNDS, (CU, MO)SR2YCU2OZ AND (CU, MO)SR2(Y, CE)2CU2OZ
    ONO, A
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1993, 32 (10): : 4517 - 4520
  • [25] High dielectric constant and variable range hopping in Bi2Sr2YCu2Oy
    Sekhar, MC
    Krishna, BG
    Maheshkumar, M
    Suryanarayana, SV
    MODERN PHYSICS LETTERS B, 1997, 11 (16-17): : 727 - 738
  • [26] Superconducting properties of untwinned YBa2Cu3Oy single crystals annealed in high-pressure oxygen
    Shibata, K
    Nishizaki, T
    Naito, T
    Maki, M
    Kobayashi, N
    PHYSICA B, 2000, 284 : 1027 - 1028
  • [27] Enhanced conductivity in Sr doped La 3 Ni 2 O 7-δ with high-pressure oxygen annealing
    Jiao, Keke
    Niu, Rui
    Xu, Huixin
    Zhen, Weili
    Wang, Jingrong
    Zhang, Changjin
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2024, 621
  • [28] ANISOTROPY OF BI2SR2CACU2OY SUPERCONDUCTING SINGLE-CRYSTALS UNDER HIGH-PRESSURE
    LIU, ZX
    ZHENG, DN
    YAN, YF
    WANG, JH
    WANG, LJ
    ZHAO, ZX
    CHINESE PHYSICS LETTERS, 1991, 8 (01): : 29 - 32
  • [29] YBA2CU3OY ANNEALED UNDER HIGH-PRESSURE OXIDIZING ATMOSPHERE
    SATO, M
    KONAKA, T
    SANKAWA, I
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (06): : L1047 - L1049
  • [30] HIGH-PRESSURE SYNTHESIS OF SUPERCONDUCTING LA1.7CA1.3CU2OY
    OKAI, B
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1991, 30 (2A): : L179 - L181
12345