Динамические свойства коррелированных электронов в системах низкой размерности
Диссертация
Функции памяти для зарядовой восприимчивости также содержит в себе два вклада: первый член описывает вклад от парных возбуждении частица-дырка, второй — включает в себя процесс рассеяния электронов на спиновых и зарядовых флуктуациях. Показано, что в длинноволновом пределе спектр зарядовых флуктуации дается затухающей звуковой модой. Вычислены скорость и затухание звука. В коротковолновом пределе… Читать ещё >
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