Infrared and Raman study of the charge-ordered state in the vicinity of the superconducting state in the organic conductor β-(meso-DMBEDT-TTF) 2PF6

Journal of the Physical Society of Japan

Volumn 77, Issue 2, 2008, Pages

  Tanaka, Masayuki ^a   Yamamoto, Kaoru ^a   Uruichi, Mikio ^a   Yamamoto, Takashi ^a,d   Yakushi, Kyuya ^a   Kimura, Shinya ^b   Mori, Hatsumi ^a,c  

^a GRADUATE UNIVERSITY FOR ADVANCED STUDIES   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

^c JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

^d RIKEN   (Japan)

Author keywords

(meso DMBEDT TTF)2PF6; Charge fluctuation; Charge order; High pressure; Organic conductor; Superconductivity

Indexed keywords

EID: 54349122256     PISSN: 00319015     EISSN: 13474073     Source Type: Journal    
DOI: 10.1143/JPSJ.77.024714     Document Type: Article

References (45)

1. J. Merino and R. H. McKenzie: Phys. Rev. Lett. 87 (2001) 237002.
2. Y. Tanaka, Y. Yanase, and M. Ogata: J. Phys. Soc. Jpn. 73 (2004) 2053.
3. T. Yamauchi, Y. Ueda, and N. Mori: Phys. Rev. Lett. 89 (2002) 057002.
4. M. Itoh, N. Akimoto, H. Yamada, M. Isobe, and Y. Ueda: Proc. Int. Workshop Magnetic Excitations in Strongly Correlated Electrons, J. Phys. Soc. Jpn. 69 (2000) Suppl. B, p. 155.
5. T. Suzuki, I. Yamauchi, and M. Itoh: Phys. Rev. B 73 (2006) 224421.
6. A. F. Bangura, A. I. Coldea, J. Singleton, A. Ardavan, A. Akutsu-Sato, H. Akutsu, S. S. Turner, P. Day, T. Yamamoto, and K. Yakushi: Phys. Rev. B 72 (2005) 014543.
7. H. Nishikawa, Y. Sato, K. Kikuchi, T. Kodama, I. Ikemoto, J. Yamada, H. Oshio, R. Kondo, and S. Kagoshima: Phys. Rev. B 72 (2005) 052510.
8. N. Tajima, A. Ebina-Tajima, M. Tamura, Y. Nishio, and K. Kajita: J. Phys. Soc. Jpn. 71 (2002) 1832.
9. T. Yamamoto, H. Yamamoto, R. Kato, M. Uruichi, K. Yakushi, H. Akutsu, A. Sato-Akutsu, A. Kawamoto, S. S. Turner, and P. Day: to be published in Phys. Rev. B 77 (2008).
10. N. Tajima, S. Sugiura, M. Tamura, Y. Nishio, and K. Kajita: J. Phys. Soc. Jpn. 75 (2006) 051010.
11. A. Kobayashi, S. Katayama, K. Noguchi, and Y. Suzumura: J. Phys. Soc. Jpn. 73 (2004) 3135.
12. Y. Takano, K. Hiraki, H. M. Yamamoto, T. Nakamura, and T. Takahashi: Synth. Met. 120 (2001) 1081.
13. R. Wojciechowski, K. Yamamoto, K. Yakushi, M. Inokuchi, and A. Kawamoto: Phys. Rev. B 67 (2003) 224105.
14. M. Dressel, N. Drichko, J. Schlueter, and J. Merino: Phys. Rev. Lett. 90 (2003) 167002.
15. N. Drichko, M. Dressel, C. A. Kuntscher, A. Pashkin, A. Greco, J. Merino, and J. Schlueter: Phys. Rev. B 74 (2006) 235121.
16. S. Kimura, T. Maejima, H. Suzuki, R. Chiba, H. Mori, T. Kawamoto, T. Mori, H. Moriyama, Y. Nishio, and K. Kajita: Chem. Commun. (2004) 2454.
17. T. Mori, A. Kobayashi, Y. Sasaki, H. Kobayashi, G. Saito, and H. Inokuchi: Chem. Lett. 13 (1984) 957.
18. S. Kimura, H. Suzuki, T. Maejima, H. Mori, J. Yamada, T. Kakiuchi, H. Sawa, and H. Moriyama: J. Am. Chem. Soc. 128 (2006) 1456.
19. K. Yoshimi, M. Nakamura, and H. Mori: J. Phys. Soc. Jpn. 76 (2007) 024706.
20. T. Takahashi, Y. Nogami, and K. Yakushi: J. Phys. Soc. Jpn. 75 (2006) 051008.
21. K. Yakushi: Bull. Chem. Soc. Jpn. 73 (2000) 2643.
22. M. Maksimuk, K. Yakushi, H. Taniguchi, K. Kanoda, and A. Kawamoto: J. Phys. Soc. Jpn. 70 (2001) 3728.
23. 1 line converted into pressure is negligible within ±0.1 kbar above 100 K, but it increase to ±0.5 kbar below 50 K.
24. Gaussian98, revision A.11. Gaussian Inc.
25. A. P. Scott and L. Radom: J. Phys. Chem. 100 (1996) 16502.
26. H. Tajima, K. Yakushi, and H. Kuroda: Solid State Commun. 56 (1985) 159.
27. H. Tajima, H. Kanbara, K. Yakushi, and H. Kuroda: Solid State Commun. 57 (1986) 911.
28. C. S. Jacobsen and D. B. Tanner: Phys. Rev. B 35 (1987) 9605.
29. K. Yakushi, J. Ulanski, H. Yamochi, and G. Saito: Phys. Rev. B 61 (2000) 9891.
30. G. M. Begun and A. C. Rutenberg: Inorg. Chem. 6 (1967) 2212.
31. 1).
32. -1 band below 68 K.
33. K. Suzuki, K. Yamamoto, and K. Yakushi: Phys. Rev. B 69 (2004) 085114. When the EMV interaction is strong, the splitting is mainly governed not by the difference in valence but by the EMV effect. In this case, the high-frequency mode persists at the same position before splitting.
34. H. Mori: J. Phys. Soc. Jpn. 75 (2006) 051003.
35. M. Watanabe, Y. Noda, Y. Nogami, and H. Mori: J. Phys. Soc. Jpn. 73 (2004) 116.
36. H. Watanabe and M. Ogata: J. Phys. Soc. Jpn. 75 (2006) 063702.
37. C. Nakano, K. Yakushi, M. Kohama, K. Ueda, and T. Sugimoto: Solid State Commun. 113 (2000) 677.
38. The transfer integral is estimatd from the empirical relation, t ∼ -10S, where S is the overlap integral that is given in ref. 16.
39. T. Yamamoto, M. Uruichi, K. Yakushi, and A. Kawamoto: Phys. Rev. B 73 (2006) 125116.
40. M. Uruichi, K. Yakushi, H. M. Yamamoto, and R. Kato: J. Phys. Soc. Jpn. 75 (2006) 074720.
41. H. Sawa: private communication.
42. D. Jerome: Chem. Rev. 104 (2004) 5565.
43. F. Kagawa, T. Itou, K. Miyagawa, and K. Kanoda: Phys. Rev. B 69 (2004) 064511.
44. 2X, has a coexistent region of AF and SC states between the AF phase and SC phase. [S. Lefebvre, P. Wzietek, S. Brown, C. Bourbonnais, D. Jerome, C. Meziere, M. Fourmigue, and P. Batail: Phys. Rev. Lett. 85 (2000) 5420.]
45. E. Dagotto: Science 309 (2005) 257.