Local edge modes in doped cuprates with checkerboard polaronic heterogeneity

被引：10

作者：

Kaneshita, E ^{[1
]}

Martin, I ^{[1
]}

Bishop, AR ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 12期

关键词：

polaron; local mode; eletron-phonon coupling; high-temperature superconductor;

D O I：

10.1143/JPSJ.73.3223

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study a periodic polaronic system, which exhibits a nanoscale superlattice structure, as a model for hole-doped cuprates with checkerboard-like heterogeneity, as has been observed recently by scanning tunneling microscopy (STM). Within this model, the electronic and phononic excitations are investigated by applying an unrestricted Hartree-Fock and a random phase approximation (RPA) to a multiband Peierls-Hubbard Hamiltonian in two dimensions.

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页码：3223 / 3226

页数：4

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