Advertisement

Journal of Low Temperature Physics

, Volume 142, Issue 3–4, pp 377–382 | Cite as

Electrical Inhomogeneity at the Mott Transition in the Band Width Controlled κ-(BEDT-TTF)2Cu[N(CN)2Br

  • T. Sasaki
  • N. Yoneyama
  • A. Suzuki
  • I. Ito
  • N. Kobayashi
  • Y. Ikemoto
  • H. Kimura
  • N. Hanasaki
  • H. Tajima
Article

The electronic phase separation on macroscopic scale is studied in the organic Mott system κ-(BEDT-TTF)2Cu[N(CN)2]Br by means of scanning microregion infrared spectroscopy using the synchrotron radiation. The phase separation appears in the vicinity of the Mott boundary in the single crystals of which the band width is controlled by partly substituting the BEDT-TTF molecule with the deuterated one. The transport properties under the phase separation are considered to be influenced by the percolation process of the domains.

PACS Numbers

74.70.Kn 78.30.Jw 71.30.+h 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Kanoda K. (1997). Hyperfine Interactions 104:235CrossRefADSGoogle Scholar
  2. 2.
    Lefebvre S. et al. (2000). Phys. Rev. Lett. 85:5420CrossRefADSGoogle Scholar
  3. 3.
    D. Fournier et al., Phys. Rev. Lett. 90, 127002 (2003).Google Scholar
  4. 4.
    P. Limelette et al., Phys. Rev. Lett. 91, 016401 (2004).Google Scholar
  5. 5.
    T. Sasaki et al., Phys. Rev. B 65, 060505 (2002).Google Scholar
  6. 6.
    J. Müller et al., Phys. Rev. B 65, 144521 (2002).Google Scholar
  7. 7.
    T. Sasaki et al., Phys. Rev. B 69, 064508 (2004).Google Scholar
  8. 8.
    T. Sasaki et al., Phys. Rev. Lett. 92, 227001 (2004).Google Scholar
  9. 9.
    Sasaki T. et al. (2005). J. Phys. Soc. Jpn. 74:2351CrossRefADSGoogle Scholar
  10. 10.
    K. Miyagawa et al., Phys. Rev. Lett. 89, 017003 (2002).Google Scholar
  11. 11.
    H. Taniguchi et al., Phys. Rev. B 67, 014510 (2003).Google Scholar
  12. 12.
    D. J. Bergman and D. Stroud, in Solid State Physics, 46, 147, (Academic Press, New York, 1992) and references therein.Google Scholar
  13. 13.
    Yoneyama N. et al. (2004). J. Phys. Soc. Jpn. 73:1434CrossRefADSGoogle Scholar
  14. 14.
    N. Yoneyama et al., (unpublished) cond-mat/0507155.Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • T. Sasaki
    • 1
  • N. Yoneyama
    • 1
  • A. Suzuki
    • 1
  • I. Ito
    • 1
  • N. Kobayashi
    • 1
  • Y. Ikemoto
    • 2
  • H. Kimura
    • 2
  • N. Hanasaki
    • 3
  • H. Tajima
    • 3
  1. 1.Institute for Materials ResearchTohoku UniversitySendaiJapan
  2. 2.SPring-8Japan Synchrotron Radiation Research InstituteHyogoJapan
  3. 3.Institute for Solid State PhysicsUniversity of TokyoKashiwaJapan

Personalised recommendations