PROPERTIES OF THE TETRAGONAL SUPERCONDUCTOR CABALACU3OX

被引:90
作者
DELEEUW, DM
MUTSAERS, CAHA
VANHAL, HAM
VERWEIJ, H
CARIM, AH
SMOORENBURG, HCA
机构
[1] Philips Research Lab, Netherlands
来源
PHYSICA C | 1988年 / 156卷 / 01期
关键词
Oxides;
D O I
10.1016/0921-4534(88)90117-7
中图分类号
O59 [应用物理学];
学科分类号
摘要
The compound CaBaLaCu3O6.9 is a tetragonal bulk superconductor with a Tc of 80 K. CaBaLaCu3Ox is isomorphic to tetragonal YBa24Cu3Ox in which the Ca and La ions are both located at the Y- and Ba-site. High temperature X-ray diffraction and thermogravimetric measurements show no indication for 'order-disorder' transitions involving the oxygen ions. TEM micrographs of CaBaLaCu3Ox show no evidence for a/b twinning. The oxygen content and the partial oxygen pressure of CaBaLaCu3Ox are determined as a function of temperature. The standard enthalpy change for the oxidation reaction, ΔH, is determined as 190.4(0.3) kJ/mol O2. Transmission electron diffraction patterns show weak but distinct half-order spots indicating an ordering which can be described by a supercell having axes twice as large as the basic unit cell.
引用
收藏
页码:126 / 132
页数:7
相关论文
共 18 条
  • [1] CRYSTALLOGRAPHY AND MICROSTRUCTURE OF Y1BA2CU3O9-X, A PEROVSKITE-BASED SUPERCONDUCTING OXIDE
    BEYERS, R
    LIM, G
    ENGLER, EM
    SAVOY, RJ
    SHAW, TM
    DINGER, TR
    GALLAGHER, WJ
    SANDSTROM, RL
    [J]. APPLIED PHYSICS LETTERS, 1987, 50 (26) : 1918 - 1920
  • [2] BULK SUPERCONDUCTIVITY AT 91-K IN SINGLE-PHASE OXYGEN-DEFICIENT PEROVSKITE BA2YCU3O9-DELTA
    CAVA, RJ
    BATLOGG, B
    VANDOVER, RB
    MURPHY, DW
    SUNSHINE, S
    SIEGRIST, T
    REMEIKA, JP
    RIETMAN, EA
    ZAHURAK, S
    ESPINOSA, GP
    [J]. PHYSICAL REVIEW LETTERS, 1987, 58 (16) : 1676 - 1679
  • [3] COMPOUNDS AND PHASE COMPATIBILITIES IN THE SYSTEM Y2O3-BAO-CUO AT 950-DEGREES-C
    DELEEUW, DM
    MUTSAERS, CAHA
    LANGEREIS, C
    SMOORENBURG, HCA
    ROMMERS, PJ
    [J]. PHYSICA C, 1988, 152 (01): : 39 - 49
  • [4] TWINS AND ORIENTED DOMAINS IN THE ORTHORHOMBIC SUPERCONDUCTOR YBA2CU3O7+/-EPSILON
    HERVIEU, M
    DOMENGES, B
    MICHEL, C
    HEGER, G
    PROVOST, J
    RAVEAU, B
    [J]. PHYSICAL REVIEW B, 1987, 36 (07): : 3920 - 3922
  • [5] OXYGEN ORDERING AND THE ORTHORHOMBIC-TO-TETRAGONAL PHASE-TRANSITION IN YBA2CU3O7-X
    JORGENSEN, JD
    BENO, MA
    HINKS, DG
    SODERHOLM, L
    VOLIN, KJ
    HITTERMAN, RL
    GRACE, JD
    SCHULLER, IK
    SEGRE, CU
    ZHANG, K
    KLEEFISCH, MS
    [J]. PHYSICAL REVIEW B, 1987, 36 (07): : 3608 - 3616
  • [6] HIGH-TEMPERATURE SUPERCONDUCTIVITY AT 90-K IN ORTHORHOMBIC LABA2CU3OY
    MAEDA, A
    YABE, T
    UCHINOKURA, K
    TANAKA, S
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (08): : L1368 - L1370
  • [7] INFLUENCE OF CA ON THE SUPERCONDUCTIVITY OF Y1-XCAXBA2CU3O7-DELTA
    MANTHIRAM, A
    LEE, SJ
    GOODENOUGH, JB
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1988, 73 (01) : 278 - 282
  • [8] ELECTRON-MICROSCOPY STUDY OF TWIN BEHAVIOR IN GDBA2CU3OX AND YBA2CU3OX
    MITCHELL, TE
    ROY, T
    SCHWARZ, RB
    SMITH, JF
    WOHLLEBEN, D
    [J]. JOURNAL OF ELECTRON MICROSCOPY TECHNIQUE, 1988, 8 (03): : 317 - 323
  • [9] OXYGEN ORDERING AND SUPERCONDUCTIVITY IN LA(BA2-XLAX)CU3O7+DELTA
    SEGRE, CU
    DABROWSKI, B
    HINKS, DG
    ZHANG, K
    JORGENSEN, JD
    BENO, MA
    SCHULLER, IK
    [J]. NATURE, 1987, 329 (6136) : 227 - 229
  • [10] CRYSTAL-STRUCTURE AND SUPERCONDUCTING PROPERTIES OF ND1+XBA2-XCU3O7+Y
    STEEMAN, RA
    FRIKKEE, E
    HELMHOLDT, RB
    DELEEUW, DM
    MUTSAERS, CAHA
    [J]. PHYSICA C, 1988, 153 : 950 - 951