Shubnikov-de Haas Effect and Angular-dependent Magnetoresistance in New Layered Organic Conductors ET_3Cl(DFBIB) and ET_3Br(pBIB)(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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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.
- 社団法人日本物理学会の論文
- 2005-02-15
著者
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YAMAMOTO Hiroshi
RIKEN (The institute of Physical and Chemical Research)
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KATO Reizo
RIKEN (The institute of Physical and Chemical Research)
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TERASHIMA Taichi
National Institute for Materials Science
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UJI Shinya
National Institute for Materials Science
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Yamamura Jun-ichi
Institute For Solid State Physics University Of Tokyo
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Yamaura Junichi
Institute For Solid State Physics University Of Tokyo
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Yamaura J
Univ. Tokyo Chiba
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Yamaura Junichi
Materials Design And Characterization Laboratory Institute For Solid State Physics University Of Tok
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Yamaura J
Univ. Tokyo Chiba Jpn
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Yamaura J
Institute For Solid State Physics University Of Tokyo
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Kato Reizo
Riken
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Uji S
National Research Institute For Metals
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Yasuzuka Syuma
Division Of Molecular Materials Science Graduate School Of Science Osaka City University
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YAKABE Taro
National Institute for Materials Science
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TERAI Yoshikazu
National Institute for Materials Science
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TERAKURA Chieko
National Institute for Materials Science
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MAEDA Ryoko
RIKEN (The Institute of Physical and Chemical Research)
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Yasuda Jun
Institute For Solid State Physics University Of Tokyo
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