Determination of Band-filling Change in the Two-dimensional Organic Conductor, τ-(EDO-S, S-DMEDT-TTF)_2(AuBr_2)_<1+y>, (y≤0.875) by the Quantum Oscillation of Magnetoresistance(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Pr

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概要

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• The effect of thermal treatment on the transport properties is studied for a two-dimensional organic conductor τ-(EDO-S, S-DMEDT-TTF)_2(AuBr_2)_<1+y>, (y≤0.875). The temperature dependence of the electric resistivity below room temperature was found to be changed from metallic down to low temperature to semiconducting by heating up to 420K. One of the two frequencies of Shubnikovde Haas oscillations are found to be different between the non-heated and heated parts from a single crystal, while no evidence of structural change in X-ray photograph was observed. The present result clearly shows that nominal valence or band filling can be controlled by simple thermal treatment for the quasi-two-dimensional organic metal. The mechanism of the change in the band filling is discussed in terms of anion decomposition.

• 社団法人日本物理学会の論文
• 2005-01-15

著者

• Papavassiliou G

  National Hellenic Res. Foundation Athens Grc

• Brooks J

  National High Magnetic Field Laboratory Florida State University

• Brooks J

  National High Magnetic Field Laboratory

• Brooks James

  National High Magnetic Field Laboratory Florida State University

• Yoshino Harukazu

  Department Of Material Science Faculty Of Science Osaka City University

• Murata Keizo

  Department of Material Science,Faculty of Science,Osaka City University

• Graf David

  National High Magnetic Field Laboratory

• Murata Keizo

  Department Of Material Science Graduate School Of Science Osaka City University

• NOGAMI Yoshio

  Graduate School of Natural Science and Technology, Okayama University

• LI Lin

  Department of Materials Science and Engineering, Shanghai University

• NAKANISHI Tsutomu

  Department of Physics, Nagoya University

• Brooks James

  National High Magnetic Field Laboratory

• Nogami Yoshio

  Graduate School Of Natural Science & Technology Okayama University

• Yoshino Hajime

  Institute For Solid State Physics The University Of Tokyo

• CHOI Eun

  National High Magnetic Field Laboratory, Florida State University

• PAPAVASSILIOU George

  National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute

• Papavassiliou George

  National Hellenic Research Foundation Theoretical And Physical Chemistry Institute

• Li Lin

  Department Of Crystalline Materials Science Faculty Of Engineering Nagoya University

• Choi Eun

  National High Magnetic Field Laboratory

• Nakanishi T

  Graduate School Of Science Nagoya University

• Yoshino H

  Division Of Molecular Materials Science Graduate School Of Science Osaka City University

• Yoshino Harukazu

  Department Of Material Science Graduate School Of Science Osaka City University

• Li Lin

  Department Of Computer Science And Technology & Wuhan University Of Technology

• Murata Keizo

  Department Of Material Science Graduate School Of Science Osaka City Uneversity

• Murata Keizo

  Department Of Molecular Materials Science Graduate School Of Science Osaka City University

• Murata Keizo

  Department Of Material Science Faculty Of Science Osaka City University

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