Raman Spectra of NH_4-TCNQ-I and -II

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概要

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• Polarized Raman spectra of NH.-TCNQ-I and -II have been observed in thetemperature range including phase transition temperatures T.= 301 and 215 K, respec-lively. The intensity of low frequency modes decreases rapidly with approaching thephase transition temperature from below. Mode assignment has been made on low fre-quency modes in the low temperature phase of two crystals. A comparison amongRaman spectra of NH.-TCNQ-I and alkali metal-TCNQ salts reveals that NH.-TCNQ-I resembles K-TCNQ in the stacking arrangement of the TCNQ molecules inthe chains. The intensity variation is discussed in terms of the change of Raman selec-tion rule and Raman polarizability by the dimerization of the TCNQ molecules.

• 社団法人日本物理学会の論文
• 1986-04-15

著者

• Yoshikawa M

  Department Of Electronics University Of Osaka Prefecture

• YOSHIKAWA Masayuki

  Plasma Research Center, University of Tsukuba

• Yoshikawa Masanobu

  Department Of Applied Physics Faculty Of Engineering Osaka University

• MITSUISHI Akiyoshi

  Department of Applied Physics,Osaka University

• Yoshikawa Masaaki

  Imra Material R &amp D Co Ltd.

• Yoshikawa Masahito

  Japan Atomic Energy Research Institute

• Wada Atsuo

  Department Of Applied Physics Faculty Of Engineering Osaka University

• Mitsuishi Akiyoshi

  Department Of Applied Physics Faculty Of Engineering Osaka University

• Nakashima S

  National Institute Of Advanced Industrial Science And Technology Fed Advanced Power Device Laborator

• NAKASHIMA Shinechi

  Department of Applied Physics,Faculty of Engineering,Osaka University

• Nakashima Shinechi

  Department Of Applied Physics Faculty Of Engineering Osaka University

• Yoshikawa Manabu

  Department Of Physics Faculty Of Science Yamaguchi University

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