Single-crystal growth and characterization of the superconductor HgBa2CuO4+delta

被引：11
作者：
Pissas, M
Billon, B
Charalambous, M
Chaussy, J
Le Floch, S
Bordet, P
Capponi, JJ
机构：
[1] CNRS, LAB CRISTALLOG, F-38042 GRENOBLE, FRANCE
[2] NCSR DEMOKRITOS, INST MAT SCI, ATHENS, GREECE
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1997年 / 10卷 / 08期
关键词：
D O I：
10.1088/0953-2048/10/8/013
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Single crystals of HgBa2CuO4+delta of typical size 350 x 350 x 50 mu m(3) were grown inside a sealed silica tube with and without excess of precursor Ba2CuO3+y. The process is reproducible for high growth temperatures (T > 1050 degrees C) at which the use of an alumina crucible is necessary. For lower growth temperatures the as-prepared crystals are underdoped with 83 less than or equal to T-c less than or equal to 91 K. An optimal T-c is achieved by post-annealing the crystals in flowing oxygen at 300 degrees C. Crystals grown at higher temperatures show an increase of the c-axis length after oxygen annealing, indicating they are overdoped.
引用
收藏
页码：598 / 604
页数：7
相关论文
共 19 条
  • [1] Precision neutron-diffraction study of the high-T-c superconductor HgBa2CuO4+delta
    Aksenov, VL
    Balagurov, AM
    Sikolenko, VV
    Simkin, VG
    Alyoshin, VA
    Antipov, EV
    Gippius, AA
    Mikhailova, DA
    Putilin, SN
    Bouree, F
    [J]. PHYSICAL REVIEW B, 1997, 55 (06): : 3966 - 3973
  • [2] ON THE POSSIBILITY OF REPLACING HG BY CU IN THE HGBA2CUO4+DELTA PHASE SYNTHESIZED UNDER HIGH-PRESSURE
    ALEXANDRE, ET
    LOUREIRO, SM
    ANTIPOV, EV
    BORDET, P
    DEBRION, S
    CAPPONI, JJ
    MAREZIO, M
    [J]. PHYSICA C, 1995, 245 (3-4): : 207 - 211
  • [3] Synthesis of HgBa2CuO4+delta under controlled mercury and oxygen pressures
    Alyoshin, VA
    Mikhailova, DA
    Antipov, EV
    [J]. PHYSICA C, 1996, 271 (3-4): : 197 - 204
  • [4] Synthesis of monophase HgBa2CuO4+delta under controlled partial oxygen pressure
    Alyoshin, VA
    Mikhailova, DA
    Antipov, EV
    [J]. PHYSICA C, 1995, 255 (3-4): : 173 - 179
  • [5] [Anonymous], 1993, RIETVELD METHOD
  • [6] Single-step synthesis and crystal structure of HgBa2CuO4+delta with a T-c of 97 K
    Asab, A
    Armstrong, AR
    Gameson, I
    Edwards, PP
    [J]. PHYSICA C, 1995, 255 (3-4): : 180 - 187
  • [7] Synthesis, crystal structure and magnetic properties of superconducting single crystals of HgBa2CuO4+delta
    Bertinotti, A
    Viallet, V
    Colson, D
    Marucco, JF
    Hammann, J
    LeBras, G
    Forget, A
    [J]. PHYSICA C, 1996, 268 (3-4): : 257 - 265
  • [8] BILLON B, 1997, UNPUB
  • [9] BORDET P, 1997, PHYSICA C, V271, P189
  • [10] SYNTHESIS AND CHARACTERIZATION OF SUPERCONDUCTING SINGLE-CRYSTALS OF HGBA2CA2CU3O8+DELTA
    COLSON, D
    BERTINOTTI, A
    HAMMANN, J
    MARUCCO, JF
    PINATEL, A
    [J]. PHYSICA C, 1994, 233 (3-4): : 231 - 236
12