Optical response in one-dimensional Mott insulators

被引：21
|
作者：
Kancharla, SS [1 ]
Bolech, CJ [1 ]
机构：
[1] Rutgers State Univ, Serin Phys Lab, Piscataway, NJ 08854 USA
来源：
PHYSICAL REVIEW B | 2001年 / 64卷 / 08期
关键词：
D O I：
10.1103/PhysRevB.64.085119
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the optical response of a Mott Hubbard system in the framework of the half-filled extended Hubbard model using the density matrix renormalization group (DMRG) method. We discuss the appearance of excitonic features inside the spectral gap, as the system goes from the spin density wave (SDW) to the charge density wave (CDW) phase.
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页数：4
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