A Manifestation of Berry's Phase for Phonons
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概要
- 論文の詳細を見る
Berry's topological phase acquired during adiabatic evolution of systems is con-sidered for transverse acoustic phonons in a helically wound rod of ferromagneticmaterial. Berry's phase is calculated in the presence of magnon-phonon interactionand small deviation from cubic symmetry. A simple dependence of the phase on theseperturbations is found, indicating that the presence of the magnon-phonon interac-lion is important to stabilize the phase against the destructive effect of the velocity-difference between two Iinearly-polarized transverse phonons. This dependence couldbe detected by measuring intensities of linearly-polarized waves with changing winding number of the helix.
- 社団法人日本物理学会の論文
- 1988-03-15
著者
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Igarashi Jun-ichi
Department Of Physics Faculty Of Science Osaka University
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Igarashi Jun-ichi
Department Of Physics Faculty Of Science Osaska University
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Igarashi Jun-ichi
Department Of Material Physics Faculty Of Engineering Science Osaka University
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