Dynamical properties of photogenerated polarons in one-dimensional dimerized Mott Insulators

被引：1
|
作者：
Moriya, K. [1 ]
Maeshima, N. [1 ,2 ]
Hino, K. I. [1 ,2 ]
机构：
[1] Univ Tsukuba, Div Mat Sci, Fac Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan
[2] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan
来源：
EUROPEAN PHYSICAL JOURNAL B | 2012年 / 85卷 / 10期
关键词：
PHASE-TRANSITIONS; POLYMERS; SOLITONS; SYSTEMS;
D O I：
10.1140/epjb/e2012-30690-0
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We study physical properties of photogenerated electron-lattice coupled states, polarons, in one-dimensional (1D) Peierls-Hubbard model with classical lattice distortion by means of the density matrix renormalization group method. The numerical results show novel midgap peaks in optical response spectra of polarons for large on-site Coulomb interaction U. These midgap peaks originate from charge-transfer excitations within the dimer in polarons.
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页数：4
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