The energy spectrum of single-hole states in transition metal oxides

被引：4
|
作者：
Lehmann-Szweykowska, A
Wojciechowski, RJ
Gehring, GA
机构：
[1] Adam Mickiewicz Univ, Inst Phys, PL-61614 Poznan, Poland
[2] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
来源：
ACTA PHYSICA POLONICA A | 2000年 / 97卷 / 03期
关键词：
D O I：
10.12693/APhysPolA.97.563
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The p-d hybridised single-hole states of the transition-met al-oxygen tetrahedron (TMO4) are collectivised due to the direct p-p hopping between oxygens of different clusters. The lowest-lying energy band is always narrow and fully occupied. The first excited band gets occupied as an effect of valence-uncompensated doping, so it can be almost localised. The possible hole excitations to the two higher energy bands, which are wider, may imply the Mott-like hopping form of charge transport in these systems.
引用
收藏
页码：563 / 566
页数：4
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