Phason, Sound Wave and their Coupling in the Quasi Two Dimentional Charge Density Wave
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概要
- 論文の詳細を見る
Mixed modes of a phason and a sound wave are studied for the incommensuratecharge density wave state. Our model Hamiltonian has two types of electrons.One type satisfies the nesting condition and the other one does not satisfy thiscondition and its single excitations do not have an energy gap even in the orderedstate. The band structure of electrons takes the form of a two dimensiorral system.Both types of electrons can travel along layers, but can not transit between layers.The energy dispersion of these mixed modes retain a sound wave character incontrast with that of a linear chain model in which every single excitations hasa gap. Near T. and txear 7'=0 the velocity of one of the mixed modes is equivalentto that of the sound wave of the normal state.
- 社団法人日本物理学会の論文
- 1980-06-15
著者
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Kurihara Yasunari
Institute De Fisica "gleb Wataghin" Universidade Estadual De Campinas
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Kurihara Yasunari
Instituto De Fisica "gleb Wataghin" Unicamp
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