Charge disproportionation in highly one-dimensional molecular conductor TPP[Co(Pc)(CN)2]2

Journal of the Physical Society of Japan

Volumn 75, Issue 10, 2006, Pages

  Hanasaki, N ^a,b   Masuda, K ^b   Kodama, K ^b,c   Matsuda, M ^b   Tajima, H ^b   Yamazaki, J ^b   Takigawa, M ^b   Yamaura, J ^b   Ohmichi, E ^b   Osada, T ^b   Naito, T ^d   Inabe, T ^d  

^a OKAYAMA UNIVERSITY   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

^c JAPAN ATOMIC ENERGY AGENCY   (Japan)

^d HOKKAIDO UNIVERSITY   (Japan)

Author keywords

Charge disproportionation; ESR; Magnetoresistance; NQR; One dimensional conductor; Phthalocyanine (Pc); X ray

Indexed keywords

EID: 33847298169     PISSN: 00319015     EISSN: 13474073     Source Type: Journal    
DOI: 10.1143/JPSJ.75.104713     Document Type: Article

References (41)

1. T. Ishiguro, K. Yamaji and G. Saito: Organic Superconductors (Springer, Berlin, 1998) 2nd ed.
2. D. Jérome: in Physics and Chemistry of Low-Dimensional Inorganic Conductors, ed. C. Schlenker et al. (Plenum Press, New York, 1996) p. l41.
3. H. Seo and H. Fukuyama: J. Phys. Soc. Jpn. 66 (1997) 1249.
4. H. Yoshioka, M. Tsuchizu and Y. Suzumura: J. Phys. Soc. Jpn. 69 (2000) 651.
5. Y. Tomio and Y. Suzumura: J. Phys. Chem. Solids 62 (2001) 431.
6. K. Kishigi and Y. Hasegawa: J. Phys. Soc. Jpn. 69 (2000) 3621.
7. K. Hiraki and K. Kanoda: Phys. Rev. Lett. 80 (1998) 4737.
8. T. Yamamoto, H. Tajima, R. Kato, M. Uruichi and K. Yakushi: J. Phys. Soc. Jpn. 71 (2002) 1956.
9. K. Yamamoto, T. Yamamoto, K. Yakushi, C. Pecile and M. Meneghetti: Phys. Rev. B 71 (2005) 045118.
10. D. S. Chow, E. Zamborszky, B. Alavi, D. J. Tantillo, A. Baur, C. A. Merlic and S. E. Brown: Phys. Rev. Lett. 85 (2000) 1698.
11. F. Zamborszky, W. Yu, W. Raas, S. E. Brown, B. Alavi, C. A. Meric and A. Baur: Phys. Rev. B 66 (2002) 081103.
12. S. Fujimaya and T. Nakamura: Synth. Met. 133 (2003) 67.
13. S. Fujiyama and T. Nakamura: Phys. Rev. B 70 (2004) 045102.
14. T. Itoh, K. Kanoda, K. Murata, T. Matsumoto, K. Hiraki and T. Takahashi: Phys. Rev. Lett. 93 (2004) 216408.
15. R. Chiba, K. Hiraki, T. Takahashi, H. M. Yamamoto and T. Nakamura: Phys. Rev. Lett. 93 (2004) 216405.
16. P. Monceau, F. Ya. Nad and S. Brazovskii: Phys. Rev. Lett. 86 (2001) 4080.
17. F. Sawano, I. Terasaki, H. Mori, T. Mori, M. Watanabe, N. Ikeda, Y. Nogami and Y. Noda: Nature 437 (2005) 522.
18. K. Inagaki, I. Terasaki, H. Mori and T. Mori: J. Phys. Soc. Jpn. 73 (2004) 3364.
19. J. Merino, H. Seo and M. Ogata: Phys. Rev. B 71 (2005) 125111.
20. H. Hasegawa, T. Naito, T. Inabe, T. Akutagawa and T. Nakamura: J. Mater. Chem. 8 (1998) 1567.
21. -6 in the interchain direction. The intrachain overlap integral is expected to be several orders of magnitude larger than the interchain one.
22. M. Matsuda, T. Naito, T. Inabe, N. Hanasaki, H. Tajima, T. Otsuka, K. Awaga, B. Narymbetov and H. Kobayashi: J. Mater. Chem. 10 (2000) 631.
23. N. Hanasaki, H. Tajima, M. Matsuda, T. Naito and T. Inabe: Phys. Rev. B 62 (2000) 5839.
24. N. Hanasaki, M. Matsuda, H. Tajima, E. Ohmichi, T. Osada, T. Naito and T. Inabe: J. Phys. Soc. Jpn. 75 (2006) 033703.
25. C. Hotta, M. Ogata and H. Fukuyama: Phys. Rev. Lett. 95 (2005) 216402.
26. S. Kagoshima, H. Anzai, K. Kajimura and T. Ishiguro: J. Phys. Soc. Jpn. 39 (1975) 1143.
27. M. J. Cohen, L. B. Coleman, A. F. Garito and A. J. Heeger: Phys. Rev. B 10 (1974) 1298.
28. We also observed the signal of the impurity spins near the position of 3348 G. The ESR intensity of the sample is much larger than that of the impurities.
29. S. S. P. Parkin, J. C. Scott, J. B. Torrance and E. M. Engler: Phys. Rev. B 26 (1982) 6319.
30. M. Dumm, A. Loidl, B. W. Fravel, K. P. Starkey, L. K. Montgomery and M. Dressel: Phys. Rev. B 61 (2000) 511.
31. M. Dumm, A. Loidl, B. Alavi, K. P. Starkey, L. K. Montgomery and M. Dressel: Phys. Rev. B 62 (2000) 6512.
32. J. B. Torrance, H. J. Pedersen and K. Bechagarrd: Phys. Rev. Lett. 49 (1982) 881.
33. W. M. Walsh, F. Wudl, E. Aharon-Shalom, L. W. Rupp, J. M. Vandenberg, K. Andres and J. B. Torrance: Phys. Rev. Lett. 49 (1982) 885.
34. N. Hanasaki, M. Matsuda, H. Tajima, T. Naito and T. Inabe: J. Phys. Soc. Jpn. 72 (2003) 3226.
35. jk represent the distance between the j-th and k-th spins, and the angle between the magnetic field and the vector between the positions of the j-th and k-th spins, respectively. When one sums the contribution of the dipole-dipole interaction between the neighboring molecules, the calculated linewidth has its minima at ≈ ±55° and its maximum at 0°. Here, we assume that the effects due to other mechanisms such as the spin-lattice interaction and exchange interaction are isotropic or have a monotonic angular dependence.
36. 3) the charge density and spin density have the (rich, poor, rich, poor) configuration and (up-spin, 0, down-spin, 0) configuration along the one-dimensional direction, respectively. The contribution of the dipole-dipole interaction between the nearest-neighbor sites in the intrachain direction is reduced. This may be responsible for the anomalous angular dependence of the linewidth.
37. M. H. Cohen and F. Reif: Solid State Phys. 5 (1957) 321.
38. T. Inabe calculated the molecular orbitals by the ZINDO method. Using their results, we estimated the electric field gradient eq due to electrons on various orbitals, and found that the eq due to one electron on the HOMO is 20% of the eq due to the total molecular charge. Since the latter corresponds to observed NQR frequency 14.6 MHz, the contribution from one electron on the HOMO is estimated to be 2.9 MHz. The observed frequency difference 30 kHz at low temperatures, therefore, indicates a difference in molecular charge of 0.01.
39. T. Sakurai, N. Nakagawa, S. Okubo, H. Ohta, K. Kanoda and K. Hiraki: J. Phys. Soc. Jpn. 70 (2001) 1794.
40. H. Mori: Prog. Theor. Phys. 30 (1963) 578.
41. T. Nakamura: J. Phys. Soc. Jpn. 72 (2003) 213.