CDW evidence in one-dimensional K0.3MoO3 by means of Raman scattering
作者： G. Travaglini , I. Mörke , P. Wachter
DOI: 10.1016/0038-1098(83)90483-0
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摘要: Abstract Raman scattering measurements on the one-dimensional (1-D) blue bronze K0.3MoO3 are reported as function of temperature. At about 50 cm-1 a line Ag(A) symmetry was found with an anomalous temperature dependence. The symmetry, softening eigenfrequency and apparent disappearing coupling constant at critical temperature, allow us to assign this amplitude mode CDW, predicted by theory Peierls transition. A precursor room also observed is discussed.
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