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Sadowski, J. W.*; Tanaka, Kaori*; Nagai, Yuki
Canadian Journal of Physics, 91(6), p.487 - 489, 2013/06
Times Cited Count:2 Percentile:19.91(Physics, Multidisciplinary)We examine the effects of band structure and electron-phonon interactions on charge density waves (CDW) in terms of the extended attractive Hubbard model at half filling. It is shown that van Hove singularities well below the Fermi surface can lead to a substantial energy gain by electron-phonon coupling and result in the formation of CDW.