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

被引：0
|
作者：
K. Moriya
N. Maeshima
K.I. Hino
机构：
[1] University of Tsukuba,Division of Materials Science, Faculty of Pure and Applied Sciences
[2] University of Tsukuba,Center for Computational Sciences
来源：
The European Physical Journal B | 2012年 / 85卷
关键词：
Topical issue: Excitonic Processes in Condensed Matter, Nanostructured and Molecular Materials;
D O I：
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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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