Electronic and structural properties of organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]I

被引:2
作者
Yefanov, VS
Kagoshima, S
Tanatar, MA
Ishiguro, T
Bondarenko, VA
Kushch, ND
Yagubskii, EB
机构
[1] Univ Tokyo, Dept Basic Sci, Meguro Ku, Tokyo 1538902, Japan
[2] Natl Acad Sci Ukraine, Inst Semicond Phys, UA-03028 Kiev, Ukraine
[3] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[4] Natl Acad Sci Ukraine, Inst Surface Chem, UA-03164 Kiev, Ukraine
[5] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Region, Russia
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 388卷
关键词
organic superconductor; thermopower; superstructure; uniaxial compression;
D O I
10.1016/S0921-4534(02)02754-5
中图分类号
O59 [应用物理学];
学科分类号
摘要
The thermopower, resistance under the uniaxial compression and X-ray diffuse scattering were measured on single crystals of kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]I. Diffuse X-ray studies revealed a two stage superstructural transformation, leading to a formation of an incommensurate superstructure in the ground state. Thermopower measurements show close relation between the SST and the formation of the insulating state in the salt at ambient pressure. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:589 / 590
页数:2
相关论文
共 9 条
  • [1] APPARATUS FOR THERMOPOWER MEASUREMENTS ON ORGANIC CONDUCTORS
    CHAIKIN, PM
    KWAK, JF
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1975, 46 (02) : 218 - 220
  • [2] EVIDENCE FOR A PEIERLS DISTORTION OR A KOHN ANOMALY IN ONE-DIMENSIONAL CONDUCTORS OF TYPE K2PT(CN)4BRO30 XH2O
    COMES, R
    LAMBERT, M
    LAUNOIS, H
    ZELLER, HR
    [J]. PHYSICAL REVIEW B, 1973, 8 (02): : 571 - 575
  • [3] STRAIN INDEX, LATTICE SOFTNESS AND SUPERCONDUCTIVITY OF ORGANIC DONOR-MOLECULE SALTS - CRYSTAL AND ELECTRONIC-STRUCTURES OF 3 ISOSTRUCTURAL SALTS KAPPA-(BEDT-TTF)2CU[N(CN)2]CL, KAPPA-(BEDT-TTF)2CU[N(CN)2]BR, KAPPA-(BEDT-TTF)2CU[N(CN)2]I
    GEISER, U
    SCHULTZ, AJ
    WANG, HH
    WATKINS, DM
    STUPKA, DL
    WILLIAMS, JM
    SCHIRBER, JE
    OVERMYER, DL
    JUNG, D
    NOVOA, JJ
    WHANGBO, MH
    [J]. PHYSICA C, 1991, 174 (4-6): : 475 - 486
  • [4] Superconductivity of κ-(BEDT-TTF)2Cu[N(CN)2]I under pressure
    Kushch, ND
    Tanatar, MA
    Yagubskii, EB
    Ishiguro, T
    [J]. JETP LETTERS, 2001, 73 (08) : 429 - 431
  • [5] KUSHCH ND, 2001, PISMA ESKP TEOR FIZ, V73, P479
  • [6] Structural genealogy of BEDT-TTF-based organic conductors -: II.: Inclined molecules:: θ, α, and χ phases
    Mori, T
    Mori, H
    Tanaka, S
    [J]. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1999, 72 (02) : 179 - 197
  • [7] Pressure-temperature phase diagram of the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]I -: art. no. 064516
    Tanatar, MA
    Ishiguro, T
    Kagoshima, S
    Kushch, ND
    Yagubskii, EB
    [J]. PHYSICAL REVIEW B, 2002, 65 (06): : 1 - 5
  • [8] Electronic transport properties and structural transformations of κ-(BEDT-TTF)2Cu[N(CN)2]I
    Tanatar, MA
    Kagoshima, S
    Ishiguro, T
    Ito, H
    Yefanov, VS
    Bondarenko, VA
    Kushch, ND
    Yagubskii, EB
    [J]. PHYSICAL REVIEW B, 2000, 62 (23) : 15561 - 15568
  • [9] NEW KAPPA-PHASE MATERIALS, KAPPA-(ET)2CU[N(CN)2]X, X = CL, BR AND I - THE SYNTHESIS, STRUCTURE AND SUPERCONDUCTIVITY ABOVE 11-K IN THE CL (TC = 12.8 K, 0.3 KBAR) AND.BR(TC = 11.6K) SALTS
    WANG, HH
    CARLSON, KD
    GEISER, U
    KINI, AM
    SCHULTZ, AJ
    WILLIAMS, JM
    MONTGOMERY, LK
    KWOK, WK
    WELP, U
    VANDERVOORT, KG
    BORYSCHUK, SJ
    CROUCH, AVS
    KOMMERS, JM
    WATKINS, DM
    SCHIRBER, JE
    OVERMYER, DL
    JUNG, D
    NOVOA, JJ
    WHANGBO, MH
    [J]. SYNTHETIC METALS, 1991, 42 (1-2) : 1983 - 1990