X-ray absorption spectroscopic analysis of CuIr2S4

被引：8
|
作者：
Kijima, N. [1 ]
Yashiro, H. [2 ]
Awaka, J. [1 ]
Akimoto, J. [1 ]
Nagata, S. [3 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
[2] Rigaku Corp, Tokyo 1968666, Japan
[3] Muroran Inst Technol, Dept Mat Sci & Engn, Muroran, Hokkaido 0508585, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 480卷 / 01期
关键词：
Transition metal alloys and compounds; Solid state reactions; Electronic properties; X-ray absorption fine structure; METAL-INSULATOR-TRANSITION; SUPERCONDUCTIVITY;
D O I：
10.1016/j.jallcom.2008.09.199
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The thiospinel CuIr2S4 undergoes a temperature-induced metal-insulator transition around 230 K with structure transformation. We report on the results of X-ray absorption fine structure (XAFS) studies at the Cu K-edge and It L-[I]-edge of CuIr2S4. X-ray absorption spectra were measured by a laboratory XAFS apparatus over the temperature range from 50 to 300 K. The Cu K-edge X-ray absorption near edge structure (XANES) spectra verified that Cu in CuIr2S4 is monovalent, whereas Cu in spinel-type oxide CuRh2O4 is divalent. Chemical shift of It L-[I]-edge XANES spectrum of CuIr2S4 was larger than IrCl3, and smaller than IrO2. This finding supports the presence of both Ir3+ and Ir4+ in CuIr2S4. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：120 / 122
页数：3
相关论文
共 50 条
  • [1] X-ray absorption spectroscopic analysis of CuIr2S4
    Kijima, N.
    Yashiro, H.
    Awaka, J.
    Akimoto, J.
    Nagata, S.
    Journal of Alloys and Compounds, 2009, 480 (01): : 120 - 122
  • [2] X-ray emission spectra and electronic structure of CuIr2S4 and CuIr2Se4
    Kurmaev, EZ
    Galakhov, VR
    Zatsepin, DA
    Trofimova, VA
    Stadler, S
    Ederer, DL
    Moewes, A
    Grush, MM
    Callcott, TA
    Matsuno, J
    Fujimori, A
    Nagata, S
    SOLID STATE COMMUNICATIONS, 1998, 108 (04) : 235 - 239
  • [3] X-ray radiation effects on the electrical conduction of CuIr2S4 in the insulating phase
    Furubayashi, T
    Suzuki, H
    Matsumoto, T
    Nagata, S
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : 446 - 447
  • [4] X-ray diffraction study on spinel compound CuIr2S4 with metal-insulator transition
    Ishibashi, H
    Sakai, T
    Nakahigashi, K
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 : 233 - 234
  • [5] X-ray-induced electronic structure change in CuIr2S4
    Gretarsson, H.
    Kim, Jungho
    Casa, D.
    Gog, T.
    Choi, K. R.
    Cheong, S. W.
    Kim, Young-June
    PHYSICAL REVIEW B, 2011, 84 (12):
  • [6] Valence-band structure of CuIr2S4 studied by photoemission and S L X-ray emission spectroscopies
    Kitamoto, K.
    Taguchi, Y.
    Noda, T.
    Fujita, Y.
    Mimura, K.
    Ichikawa, K.
    Ishibashi, H.
    Shin, S.
    Alta, O.
    PHYSICA B-CONDENSED MATTER, 2006, 378-80 : 561 - 562
  • [7] X-ray-induced electrical conduction in the insulating phase of thiospinel CuIr2S4
    Furubayashi, T
    Suzuki, H
    Matsumoto, T
    Nagata, S
    SOLID STATE COMMUNICATIONS, 2003, 126 (11) : 617 - 621
  • [8] EPR spectra of CuIr2S4
    Kang, H
    Bärner, K
    Rager, H
    Sondermann, U
    Mandal, P
    Medvedeva, IV
    Gmelin, E
    JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 306 (1-2) : 6 - 10
  • [9] Electrical conductivity of CuIr2S4
    Andreev, VN
    Chudnovskiy, FA
    Perooly, S
    Honig, JM
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2002, 234 (02): : 623 - 627
  • [10] High-resolution soft X-ray photoemission spectroscopy of spinel-type compound CuIr2S4
    Okane, T.
    Fujimori, S. -i.
    Mamiya, K.
    Okamoto, J.
    Muramatsu, Y.
    Fujimori, A.
    Suzuki, H.
    Matsumoto, T.
    Furubayashi, T.
    Isobe, M.
    Nagata, S.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : E297 - E298
12345