Bulletin of the Korean Chemical Society

  • 제27권3호
  • /
  • Pages.363-367
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  • 2006
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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The Origin of the Metal-insulator Transitions in Non-stoichiometric TlCu3-xS2 and α-BaCu2-xS2

  • Jung, Dong-woon (Department of Chemistry and the Institute of Natural Basic Sciences, Wonkwang University) ;
  • Choi, Hyun-Guk (Department of Chemistry and the Institute of Natural Basic Sciences, Wonkwang University) ;
  • Kim, Han-jin (Department of Chemistry and the Institute of Natural Basic Sciences, Wonkwang University)
  • 발행 : 2006.03.20
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초록

The structure-property relations of ternary copper chalcogenides, $TlCu_{3-x}S_2$ and $\alpha-BaCu_{2-x}S_2$ are examined. The density of states, band dispersions, and Fermi surfaces of these compounds are investigated to verify the reason of the metal-insulator transitions by extended Huckel tight-binding band calculations. The origin of the metalinsulator transitions of non-stoichiometric $TlCu_{3-x}S_2$ and $\alpha-BaCu_{2-x}S_2$ is thought to be the electronic instability induced by their Fermi surface nesting.

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참고문헌

  1. ter Haar, L. W.; DiSalvo, F. J.; Bair, H. E.; Fleming, R. M.; Waszczak, J. V.; Hatfield, W. E. Phys. Rev. 1987, B35, 1932
  2. Fleming, R. M.; ter Haar, L. W.; DiSalvo, F. J. Phys. Rev. 1987, B35, 5388
  3. Ohtani, T.; Ogura, J.; Sakai, M.; Sano, Y. Solid State Commun. 1991, 78, 913 https://doi.org/10.1016/0038-1098(91)90254-S
  4. Ohtani, T.; Ogura, J.; Yoshihara, H.; Yokada, Y. J. Solid State Chem. 1995, 115, 379 https://doi.org/10.1006/jssc.1995.1148
  5. Peplinski, Z.; Brown, D. B.; Watt, T.; Hatfield, W. E.; Day, P. Inorg. Chem. 1982, 21, 1752 https://doi.org/10.1021/ic00135a010
  6. Whangbo, M.-H.; Canadell, E. Inorg. Chem. 1990, 29, 1395 https://doi.org/10.1021/ic00332a022
  7. Ohtani, T.; Hoshino, T.; Tsujinouchi, A.; Hasegawa, M.; Nagaoka, N.; Yokota, Y.; Okada, Y. Mater. Res. Bull. 1995, 30, 161 https://doi.org/10.1016/0025-5408(94)00112-X
  8. Sato, H.; Igaki, E.; Nakamura, T.; Ban, T.; Kojima, N. Solid State Commun. 1989, 71, 793 https://doi.org/10.1016/0038-1098(89)90198-1
  9. Whangbo, M.-H.; Canadell, E. Sold State Commun. 1992, 81, 895 https://doi.org/10.1016/0038-1098(92)90864-6
  10. Lee, K.-S.; Seo, D.-K.; Whangbo, M.-H.; Li, H.; Mackay, R.; Hwu, S.-J. J. Solid State Chem. 1997, 134, 5 https://doi.org/10.1006/jssc.1997.7506
  11. Ohtani, T.; Takeuchi, H.; Koh, K.; Kaneko, T. J. Alloys and Compounds 2001, 317-318, 201-207
  12. Whangbo, M.-H.; Hoffmann, R. J. Am. Chem. Soc. 1978, 100, 6093 https://doi.org/10.1021/ja00487a020
  13. Klepp, K.; Yvon, K. Acta Cryst. 1980, B36, 2389
  14. Iglesias, J. E.; Pachali, K. E.; Steinfink, H. J. Solid State Chem. 1974, 9, 6 https://doi.org/10.1016/0022-4596(74)90049-8
  15. Iglesias, J. E.; Steinfink, H. Z. Kryst. Bd. 1975, 142, S.308
  16. Saeki, M.; Onoda, M.; Nozaki, H. Mat. Res. Bull. 1988, 23, 603 https://doi.org/10.1016/0025-5408(88)90169-9
  17. Onoda, M.; Saeki, M. Mat. Res. Bull. 1989, 24, 1337 https://doi.org/10.1016/0025-5408(89)90139-6
  18. Moret, R.; Pouget, J. P. In Crystal Chemistry and Properties of Materials with Quasi-One-Dimensional Structures; Rouxel, J., Ed.; Reidel: Dordrecht, The Netherlands, 1986; p 87