Mesoscale charge-ordering in transition metal oxides: Formation and signatures

被引：2
|
作者：
Bishop, AR [1 ]
Yu, ZG
机构：
[1] Univ Calif Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[2] Univ Calif Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA
来源：
JOURNAL OF SUPERCONDUCTIVITY | 1999年 / 12卷 / 01期
关键词：
Oxide; Spectroscopy; State Physics; Metal Oxide; Hubbard Model;
D O I：
10.1023/A:1007735417544
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We briefly outline the value of an inhomogeneous (unrestricted) Hartree-Fock plus Random Phase approach for understanding the types and properties of mesoscopic patterns of localized small polarons in transition metal oxides. Using a multiband Peierls-Hubbard model for a hole-doped CuO2 layer as an illustrative example, we demonstrate the appearance of correlated high-energy (electronic) and low-energy (localized phonon and spin-wave) signatures of various vertical, diagonal, metal-centered, and oxygen-centered mesoscopic stripe patterns of localized holes (small polarons). This represents important inhomogeneous magneto-elastic coupling.
引用
收藏
页码：209 / 213
页数：5
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