GROWTH AND CHARACTERIZATION OF HIGH-QUALITY SINGLE-CRYSTALS OF R2-XCEXCUO4-Y (R = ND, SM)

被引:101
作者
PENG, JL [1 ]
LI, ZY [1 ]
GREENE, RL [1 ]
机构
[1] IBM CORP,DIV RES,YORKTOWN HTS,NY 10598
来源
PHYSICA C | 1991年 / 177卷 / 1-3期
关键词
D O I
10.1016/0921-4534(91)90300-N
中图分类号
O59 [应用物理学];
学科分类号
摘要
High-quality single crystals of R2-xCexCuO4-y (R = Nd, Sm) were prepared over a range of Ce dopings x using CuO flux. By optimizing the growth conditions, free standing platelet single crystals as large as 10 X 10 X 0.1 mm3 were obtained reproducibly. TEM and SEM analyses verified that the crystals were single-phase with uniform Ce distribution. Both resistivity and magnetization showed sharp superconducting transitions (DELTA-T < 1 K) for x = 0.15. Because of the improved quality, the crystals are suitable for a definitive study of intrinsic properties. Details of the methods, post-growth annealing, and characterization of the crystals will be described.
引用
收藏
页码:79 / 85
页数:7
相关论文
共 22 条
  • [1] HAGEN SJ, UNPUB PHYS REV B DEC
  • [2] GROWTH AND ANISOTROPIC SUPERCONDUCTING PROPERTIES OF ND2-XCEXCUO4-Y SINGLE-CRYSTALS
    HIDAKA, Y
    SUZUKI, M
    [J]. NATURE, 1989, 338 (6217) : 635 - 637
  • [3] SINGLE-CRYSTAL GROWTH OF (LA1-XBAX)2CUO4 OR(LA1-XSRX)2CUO4 AND BA2YCU3O7-Y
    HIDAKA, Y
    ENOMOTO, Y
    SUZUKI, M
    ODA, M
    MURAKAMI, T
    [J]. JOURNAL OF CRYSTAL GROWTH, 1987, 85 (04) : 581 - 584
  • [4] TUNNELING EVIDENCE FOR PREDOMINANTLY ELECTRON PHONON COUPLING IN SUPERCONDUCTING BA1-XKXBIO3 AND ND2-XCEXCUO4-Y
    HUANG, Q
    ZASADZINSKI, JF
    TRALSHAWALA, N
    GRAY, KE
    HINKS, DG
    PENG, JL
    GREENE, RL
    [J]. NATURE, 1990, 347 (6291) : 369 - 372
  • [5] JIANG W, UNPUB
  • [6] THE PREPARATION AND PROCESSING OF BULK SUPERCONDUCTING CERAMIC ND1.85CE0.15CUO4-Y
    LOPEZMORALES, ME
    SAVOY, RJ
    GRANT, PM
    [J]. JOURNAL OF MATERIALS RESEARCH, 1990, 5 (10) : 2041 - 2044
  • [7] LYNN JW, 1991, PHYS REV LETT FEB
  • [8] Maple M. B., 1990, MRS Bulletin, V15, P60
  • [9] HIGH-TEMPERATURE SUPERCONDUCTIVITY IN TH-DOPED ND2CUO4-Y
    MARKERT, JT
    MAPLE, MB
    [J]. SOLID STATE COMMUNICATIONS, 1989, 70 (02) : 145 - 147
  • [10] 2 NEW ELECTRON CUPRATE SUPERCONDUCTORS, PR1.85TH0.15CUO4-Y AND EU1.85CE0.15CUO4-Y, AND PROPERTIES OF ND2-XCEXO4-Y
    MARKERT, JT
    EARLY, EA
    BJORNHOLM, T
    GHAMATY, S
    LEE, BW
    NEUMEIER, JJ
    PRICE, RD
    SEAMAN, CL
    MAPLE, MB
    [J]. PHYSICA C, 1989, 158 (1-2): : 178 - 182