Shubnikov-de Haas Effect and Angular-dependent Magnetoresistance in New Layered Organic Conductors ET_3Cl(DFBIB) and ET_3Br(pBIB)

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Abstract

This paper reports the measurements of Shubnikov-de Haas (SdH) and angular-dependent magnetoresistance oscillations (AMROs) for new layered organic conductors ET_3Cl (DFBIB) and ET_3Br (pBIB), where ET, DFBIB, and pBIB stand for bis (ethylenedithio) tetrathiafulvalene, 1, 4-difluoro-2, 5-bis (iodoethynyl) benzene, and p-bis (iodoethynl) benzene, respectively. Each of them has only a two-dimensional Fermi surface (FS), whose cross sectional area corresponds to about 50% of the first Brillouin zone. No significant difference between them is found in the size and shape of the cross-section of the FS. In spite of the similarity of the electronic state, the sharp peaks in the magnetoresistance are clearly observed for ET_3Cl (DFBIB) under in-plane magnetic fields, while anomalous broad peaks for ET_3Br (pBIB). The results suggest that the anion structure play an important role in the interlayer transport.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 74(2), 679-685, 2005-02-15

    The Physical Society of Japan (JPS)

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Codes

  • NII Article ID (NAID)
    110001979431
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    00319015
  • NDL Article ID
    7251515
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJP  NDL  NII-ELS 
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