NEUTRON-DIFFRACTION STUDY OF THE SUPERCONDUCTOR CABALACU3O7-DELTA

被引：12
|
作者：
RAJAGOPAL, H [1 ]
SEQUEIRA, A [1 ]
GUNASEKARAN, RA [1 ]
GOPALAKRISHNAN, IK [1 ]
YAKHMI, JV [1 ]
IYER, RM [1 ]
机构：
[1] BHABHA ATOM RES CTR,DIV CHEM,BOMBAY 400085,INDIA
来源：
PHYSICA B | 1991年 / 174卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(91)90632-O
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The neutron profile refinement of Ca1.1BaLaCu3O7-delta (T(c) = 71 K) shows that it has an orthorhombic structure, similar to that of YBa2Cu3O7 (Pmmm, a = 3.886(3) angstrom, b = 3.850(3) angstrom, c = 11.660(8) angstrom). The corresponding Y-sites are occupied by La- and Ca-ions in 0.31:0.69 proportion, while the Ba-sites are occupied by Ba-, La- and Ca-ions in the proportion 0.50:0.14:0.36. The structure of Ca1.1BaLaCu2.8Zn0.2O7-delta (T(c) = 30 K) is also presented.
引用
收藏
页码：372 / 377
页数：6
相关论文
共 50 条
  • [1] ORDERING PHENOMENA IN THE TETRAGONAL SUPERCONDUCTOR CABALACU3O7-DELTA
    CARIM, AH
    DEJONG, AF
    DELEEUW, DM
    PHYSICAL REVIEW B, 1988, 38 (10): : 7009 - 7012
  • [2] EFFECT OF PARTIAL SUBSTITUTION OF NI AND ZN FOR CU IN CABALACU3O7-DELTA SUPERCONDUCTOR
    GUNASEKARAN, RA
    GOPALAKRISHNAN, IK
    YAKHMI, JV
    IYER, RM
    TOMY, CV
    MALIK, SK
    PHYSICA C, 1991, 180 (5-6): : 324 - 330
  • [3] A NEUTRON-DIFFRACTION STUDY OF LABA2CU3O7-DELTA
    SEQUEIRA, A
    RAJAGOPAL, H
    GANAPATHI, L
    RAO, CNR
    JOURNAL OF SOLID STATE CHEMISTRY, 1988, 76 (01) : 235 - 239
  • [4] EFFECT OF NONSTOICHIOMETRY AND CE-DOPING ON THE TETRAGONAL SUPERCONDUCTING PHASE CABALACU3O7-DELTA
    GOPALAKRISHNAN, IK
    GUNASEKARAN, RA
    YAKHMI, JV
    IYER, RM
    BULLETIN OF MATERIALS SCIENCE, 1991, 14 (02) : 275 - 278
  • [5] NEUTRON-DIFFRACTION STUDY OF THE SUPERCONDUCTOR YBA2(CU1-XFEX)3O7-DELTA AT X=0.06 AND 0.10, DELTA=0
    BALAGUROV, AM
    MIRONOVA, GM
    PAJACZKOWSKA, A
    SZYMCZAK, H
    PHYSICA C, 1989, 158 (1-2): : 265 - 268
  • [6] A NEUTRON-DIFFRACTION STUDY OF A SINGLE-CRYSTAL OF YBA2CU3O7-DELTA
    YOU, HD
    MCMULLAN, RK
    AXE, JD
    COX, DE
    LIU, JZ
    CRABTREE, GW
    LAM, DJ
    SOLID STATE COMMUNICATIONS, 1987, 64 (05) : 739 - 742
  • [7] NEUTRON-DIFFRACTION STUDY OF THE MAGNETIC-ORDERING IN GDBA2CU3O7--DELTA
    CHATTOPADHYAY, T
    MALETTA, H
    WIRGES, W
    FISCHER, K
    BROWN, PJ
    JOURNAL DE PHYSIQUE, 1988, 49 (C-8): : 2171 - 2172
  • [8] AGING EFFECTS IN HIGH-TC YBA2CU3O7-X SUPERCONDUCTOR - A NEUTRON-DIFFRACTION STUDY
    SEQUEIRA, A
    RAJAGOPAL, H
    YAKHMI, JV
    SOLID STATE COMMUNICATIONS, 1988, 65 (09) : 991 - 995
  • [9] THE ONSET OF OXYGEN DIFFUSION IN YBA2CU3O7-DELTA - AN INVESTIGATION BY NEUTRON-DIFFRACTION
    JANTSCH, S
    IHRINGER, J
    MAICHLE, JK
    PRANDL, W
    KEMMLERSACK, S
    KIEMEL, R
    LOSCH, S
    SCHAFER, W
    SCHLICHENMAIER, M
    HEWAT, AW
    JOURNAL OF THE LESS-COMMON METALS, 1989, 150 (1-2): : 167 - 175
  • [10] HIGH-TEMPERATURE NEUTRON-DIFFRACTION STUDIES OF YBA2-XSRXCU3O7-DELTA
    FABER, J
    HITTERMAN, RL
    HIGH TEMPERATURE SCIENCE, 1989, 26 : 119 - 129
12345