Mechanisms for LT Splitting of Polarization Waves: a Link between Electron-Hole Exchange Interaction and Depolarization Shift
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概要
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SCD (spin-singlet charge detasity) descriptiora of' electron-hole exclaange infer;tction is shoxvn toprovide a bridge arnong the variotts traditional ways of' description of' LT splitting of' pol?triza-Lion modes, i.e., the interaction 211IlOI1g the itaduced polarizatiorr charge, electron-laole exchangeitateratction (f'or excitons), and the ir'nter?tction of' rraatter polarization xvith dej.colarizattion field.The taaissiuug link XV21S the description of' polarization eraergy irr terraas of' "indtrced char'ge density",xvhich eqttally applies to excitons and phonons. lVIicroscopic spattial variation of' SOD contrilotrtesto (i) the spin sinaglet-triplet splitting and also (11) the triplet splitting due to non-sphericalsytmraaetry in the curse of' excitonas. Examples of fortntrlation are given f'or tlae "LT" splittitag of'excutons in a qtranturn dot, and the spina-triplet sjclitting of excitons in ?t1katli h?rlides dtre to ctrbicanisotropy.
- 社団法人日本物理学会の論文
- 1999-02-15
著者
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Cho Kikuo
Department Of Materials Physics Graduate School Of Engineering Science Osaka University
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Cho Kikuo
Department Of Material Physics Faculty Of Engineering Science Osaka University
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