Автор |
Mami Segawa |
Автор |
Akira Takahashi |
Автор |
Masaki Aihara |
Дата выпуска |
2009-02-01 |
dc.description |
We theoretically investigate the effect of static disorder on the dynamics of photoexcited states in one-dimensional Mott insulators. We numerically calculate the time development of the state excited by a light pulse in the Pariser-Parr-Pople model, where disorder is introduced in the site energy and the transfer integral. In the weaker excitation case, the spin-charge coupling is induced by the disorder in the transfer integral. The effects of the disorder in the site energy on the spin-charge coupling are much weaker than those in the transfer integral. In the stronger excitation case, the spin and the charge degrees of freedom are coupled in the photoexcited states even in regular systems. The spin relaxations are enhanced by the disorders, and there are no significant differences in the effects of disorders on the spin relaxations between these two kinds of disorders. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Копирайт |
© 2009 IOP Publishing Ltd |
Название |
Disorder effects on relaxation of photoinduced metallic phase in one-dimensional Mott insulators |
Тип |
paper |
DOI |
10.1088/1742-6596/148/1/012062 |
Electronic ISSN |
1742-6596 |
Print ISSN |
1742-6588 |
Журнал |
Journal of Physics: Conference Series |
Том |
148 |
Первая страница |
12062 |
Последняя страница |
12064 |
Аффилиация |
Mami Segawa; Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0101, Japan |
Аффилиация |
Akira Takahashi; Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0101, Japan |
Аффилиация |
Masaki Aihara; Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0101, Japan |
Выпуск |
1 |