Optical properties of α′-(BEDT-TTF)2IBr2

被引：4
|
作者：
Inokuchi, M [1 ]
Yakushi, K
Kinoshita, M
Saito, G
机构：
[1] Sci Univ Tokyo, Fac Sci & Engn, Dept Mat Sci & Engn, Yamaguchi 7560884, Japan
[2] Inst Mol Sci, Okazaki, Aichi 4448585, Japan
[3] Kyoto Univ, Grad Sch Sci, Dept Chem, Sakyo Ku, Kyoto 6068501, Japan
来源：
SYNTHETIC METALS | 1999年 / 103卷 / 1-3期
关键词：
organic conductors; structural and magnetic phase transitions; reflection spectroscopy; infrared and Raman spectroscopy;
D O I：
10.1016/S0379-6779(98)00458-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The molecular semiconductor alpha'-(BEDT-TTF)(2)IBr2, is known to undergo structural and magnetic phase transitions at around 200 K and 60 K, respectively. In order to elucidate the mechanism of these phase transitions, measurements of the polarised reflectance spectra and Raman spectra were carried out at low temperatures. In the reflectance spectra, the spectral change in the infrared region was observed at around 200 K. In the Raman spectra, the band at 1480 cm(-1) splits with decreasing temperature. No change was not observed for both measurements at around 60 K. We point out the possibility that the BEDT-TTFs may posses different charges in this salt.
引用
收藏
页码：2101 / 2102
页数：2
相关论文
共 50 条
  • [31] POLARIZED REFLECTANCE SPECTRA OF DI(BIS(ETHYLENEDITHIOLO)TETRATHIAFULVALENE)DIBROMOIODATE(I), BETA-(BEDT-TTF)2IBR2
    SUGANO, T
    SAITO, G
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (27): : 5471 - 5476
  • [32] First-principles characterization of the electronic structure of the molecular superconductor β-(BEDT-TTF)2IBr2 -: art. no. 180505
    Lee, YJ
    Nieminen, RM
    Ordejon, P
    Canadell, E
    [J]. PHYSICAL REVIEW B, 2003, 67 (18):
  • [33] SYNTHESIS, STRUCTURE, AND PROPERTIES OF (BPDT-TTF)2IBR2
    NIGREY, PJ
    MOROSIN, B
    VENTURINI, EL
    AZEVEDO, LJ
    SCHIRBER, JE
    PERSCHKE, SE
    WILLIAMS, JM
    [J]. PHYSICA B & C, 1986, 143 (1-3): : 290 - 292
  • [34] Order-disorder type of charge-ordering phase transition in narrow-bandwidth compound, α′-(BEDT-TTF)2IBr2
    Yue, Y.
    Yamamoto, K.
    Nakano, C.
    Uruichi, M.
    Yakushi, K.
    Inokuchi, M.
    Hiejima, T.
    Kawamoto, A.
    [J]. PHYSICA B-CONDENSED MATTER, 2010, 405 (11) : S232 - S236
  • [35] ORGANIC CONDUCTORS AND SUPERCONDUCTORS - MIXED (IBR2-) POLYHALIDES BEDT-TTF
    YAGUBSKII, EB
    SHCHEGOLEV, IF
    SHIBAEVA, RP
    FEDUTIN, DN
    ROZENBERG, LP
    SOGOMONYAN, EM
    LOBKOVSKAYA, RM
    LAUKHIN, VN
    IGNATEV, AA
    ZVARYKINA, AV
    BURAVOV, LI
    [J]. JETP LETTERS, 1985, 42 (04) : 206 - 208
  • [36] AMBIENT-PRESSURE SUPERCONDUCTIVITY AT 2.7-K AND HIGHER TEMPERATURES IN DERIVATIVES OF (BEDT-TTF)2IBR2 - SYNTHESIS, STRUCTURE, AND DETECTION OF SUPERCONDUCTIVITY
    WILLIAMS, JM
    WANG, HH
    BENO, MA
    EMGE, TJ
    SOWA, LM
    COPPS, PT
    BEHROOZI, F
    HALL, LN
    CARLSON, KD
    CRABTREE, GW
    [J]. INORGANIC CHEMISTRY, 1984, 23 (24) : 3839 - 3841
  • [37] OPTICAL-PROPERTIES OF BEDT-TTF SALTS
    KURODA, H
    YAKUSHI, K
    TAJIMA, H
    KANBARA, H
    SAITO, G
    [J]. SYNTHETIC METALS, 1987, 19 (1-3) : 131 - 136
  • [38] Optical properties of the organic metal (BEDT-TTF)4 [Ni(dto)2]
    Griesshaber, E
    Haas, P
    Thoms, J
    Darjushkin, A
    Gorshunov, BP
    Dressel, M
    Schweitzer, D
    Kremer, RK
    Golnik, A
    Bernhard, C
    Cardona, M
    Klausa, T
    Strunz, W
    [J]. SYNTHETIC METALS, 2001, 120 (1-3) : 731 - 732
  • [39] MAGNETIC AND OPTICAL-PROPERTIES OF (BEDT-TTF)CUCL2 COMPLEX
    TANAKA, M
    KAWAMOTO, A
    TANAKA, J
    SANO, M
    ENOKI, T
    INOKUCHI, H
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1987, 26 : 893 - 894
  • [40] 13C-NMR study of charge order state of the organic conductor α′-(BEDT - TTF)2IBr2
    Hirose, S.
    Kawamoto, A.
    [J]. PHYSICA B-CONDENSED MATTER, 2010, 405 (11) : S160 - S163
12345