Lattice vibrations at the Charge-Density
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Shunji Sugai; Susumu Kurihara; Masatoshi Sato
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Article
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1986
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Elsevier Science
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The present Raman study in quasi-one-dimensional CDW system, (TaSe~)91 and (NbSem)91, elucidates the existence of three CDW-related TO modes: the amplitude mode fr6m~the Kohn anomaly point and two TO modes coupled with it. The CDW transition in this system is theoretically treated by the model with