High-pressure growth of Ca2-xNaxCuO2Cl2 single crystals and pressure effect on superconductivity

被引：2
作者：
Yu, Runze [1 ]
Liu, Qingqing [1 ]
Zhang, Sijia [1 ]
Wang, Xiancheng [1 ]
Han, Wei [1 ]
Jin, Changqing [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2012年 / 478卷
关键词：
Ca2-xNaxCuO2Cl2; Single crystals; Pressure effect; HIGH-TC SUPERCONDUCTORS; COMPOUND SYSTEM; CA2CUO2CL2; GPA; (SR; CA)(3)CU2O4+DELTA-CL2-Y; TEMPERATURE; DEPENDENCE; STATE;
D O I：
10.1016/j.physc.2012.03.028
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Single crystals of cuprate oxychloride superconductor Ca-2 xNaxCuO2Cl2 (Na-CCOC) with a systematic variant T-c as a function of Na content are synthesized under high pressure and high temperature. The pressure effect on the superconducting transition temperature in Na-CCOC single crystal is investigated by electrical resistance measurements up to 6.5 GPa. It is found that the T-c decreases almost linearly with increasing pressure, exhibiting a negative pressure shift, which is totally different pressure behavior from that of isostructural (La, Sr)2CuO(4) and other cuprate superconductors. (c) 2012 Elsevier B.V. All rights reserved.
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收藏
页码：29 / 31
页数：3
相关论文
共 25 条
  • [1] Large enhancement of T-c (50K) by applying high pressure in the Hg-2212 superconductor
    Acha, C
    Loureiro, SM
    Chaillout, C
    Tholence, JL
    Capponi, JJ
    Marezio, M
    NunezRegueiro, M
    [J]. PHYSICA C, 1997, 282 : 1167 - 1168
  • [2] HIGH-PRESSURE SYNTHESIS OF SUPERCONDUCTING SR-CA-CU-O SAMPLES
    ADACHI, S
    YAMAUCHI, H
    TANAKA, S
    MORI, N
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1993, 208 (3-4): : 226 - 230
  • [3] EVIDENCE FOR SUPERCONDUCTIVITY ABOVE 40 K IN THE LA-BA-CU-O COMPOUND SYSTEM
    CHU, CW
    HOR, PH
    MENG, RL
    GAO, L
    HUANG, ZJ
    WANG, YQ
    [J]. PHYSICAL REVIEW LETTERS, 1987, 58 (04) : 405 - 407
  • [4] SUPERCONDUCTIVITY ABOVE 150-K IN HGBA2CA2CU3O8+DELTA AT HIGH-PRESSURES
    CHU, CW
    GAO, L
    CHEN, F
    HUANG, ZJ
    MENG, RL
    XUE, YY
    [J]. NATURE, 1993, 365 (6444) : 323 - 325
  • [5] A 'checkerboard' electronic crystal state in lightly hole-doped Ca2-xNaxCuO2Cl2
    Hanaguri, T
    Lupien, C
    Kohsaka, Y
    Lee, DH
    Azuma, M
    Takano, M
    Takagi, H
    Davis, JC
    [J]. NATURE, 2004, 430 (7003) : 1001 - 1005
  • [6] A NEW FAMILY OF COPPER-OXIDE SUPERCONDUCTORS SRN+1CUNO2N+1+DELTA STABILIZED AT HIGH-PRESSURE
    HIROI, Z
    TAKANO, M
    AZUMA, M
    TAKEDA, Y
    [J]. NATURE, 1993, 364 (6435) : 315 - 317
  • [7] Hiroi Z, 1996, PHYSICA C, V266, P191, DOI 10.1016/0921-4534(95)00535-8
  • [8] A four unit cell periodic pattern of quasi-particle states surrounding vortex cores in Bi2Sr2CaCu2O8+δ
    Hoffman, JE
    Hudson, EW
    Lang, KM
    Madhavan, V
    Eisaki, H
    Uchida, S
    Davis, JC
    [J]. SCIENCE, 2002, 295 (5554) : 466 - 469
  • [9] HIGH-PRESSURE STUDY OF THE NEW Y-BA-CU-O SUPERCONDUCTING COMPOUND SYSTEM
    HOR, PH
    GAO, L
    MENG, RL
    HUANG, ZJ
    WANG, YQ
    FORSTER, K
    VASSILIOUS, J
    CHU, CW
    WU, MK
    ASHBURN, JR
    TORNG, CJ
    [J]. PHYSICAL REVIEW LETTERS, 1987, 58 (09) : 911 - 912
  • [10] The enhanced superconductivity of Cu-1234 under high pressure
    Jin, CQ
    Qin, XM
    Shimizu, K
    Nishiyama, M
    Namiki, T
    Yu, Y
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2005, 19 (1-3): : 335 - 337
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