Reflectance Spectra and Electrical Resistivity of (Me_2-DCNQI)_2Li_<1-x>Cu_x
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概要
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XX'e systetmatically study trarasport and optical properties of' charge-transfer salts, (lVIe3-DCINQI)3Li) .Ctr. (0< x< l). The tertaperatture dependence of electrical resistivity exhibitssernicondtrcting behsxvior at x : 0, a metal-sernicondtrctor transitiota for 0.08< x< 0.29, andtmetallic behavior doxvn to 4.2 K f'or I >0.39. A senaicondtrctor-senaaicondtrctor transitiora isobserxxed arotrnd 60K for x< 0.14. The reflectance spectra at [00111 tetnperattrre reveal txvooptical excitations in the iraf'rared region. The first excitatioru appears in salts witlu I / O f'ar1)CIIOXX' 650 crn ' . Time second excitation is tlae so-called mid-inJ'rar'ed bartd, whicla appears around3000 Clll " for' 0< I< 0.14, arnd shifts doxvnxv?'trd for' x >0.17. We propose a hypotlaesis whichprovides an explarnatiota lootl? f'or the raaetallic condtrction and f'or the mid-infrared band in aone-ditnensiotaal condtrctor haxzitag a qtrarter-filled bauad.
- 社団法人日本物理学会の論文
- 1999-04-15
著者
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YAMAURA Jun-Ichi
Institute for Solid State Physics, University of Tokyo
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Yamamura Jun-ichi
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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Yamamoto S
Japan Atomic Energy Research Institute Department Of Fusion Plasma Research Experimental Plasma Phys
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Aonuma S
Faculty Of Engineering Osaka Electro-communication University
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Aonuma Shuji
Institute For Solid State Physics University Of Tokyo
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Aonuma Shuji
Institute For Solid State Physics The University Of Tokyo
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Aonuma Shuji
Faculty Of Engineering Osaka Electro-communication University
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Yamaura J
Institute For Solid State Physics University Of Tokyo
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Yamaura Jun-ichi
Institute For Solid State Physics The University Of Tokyo
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Kato R
Riken (the Institute Of Physical And Chemical Research) Jst-crest
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Kato Reizo
Institute For Solid State Physics The University Of Tokyo
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Yamabe T
Tokyo Inst. Technol. Tokyo Jpn
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Yamamoto T
Institute For Solid State Physics The University Of Tokyo
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TAJIMA Hiroyuki
Institute for Solid State Physics, The University of Tokyo
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Yamamoto Takashi
Institute of Materials Science, University of Tsukuba
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Tajima Hiroyuki
Institute For Solid State Physics The University Of Tokyo
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Kato Reizo
Condensed Molecular Materials Lab. Riken
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Yamamoto T
Japan Atomic Energy Research Inst. Tokai
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Yamamoto T
Institute For Molecular Science And Graduate University For Advanced Studies:(present Office)riken
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Yasuda Jun
Institute For Solid State Physics University Of Tokyo
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Yamamoto Takayoshi
The Institute Of Scientific And Industrial Research Osaka University
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Yamamoto Takashi
Institute For Molecular Science
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Kato Reizo
Condensed Molecular Materials Lab., RIKEN
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