Quantum decoherence in the spectral functions of undoped LaMnO3 -: art. no. 067204

被引：20
|
作者：
Bala, J
Sawatzky, GA
Oles, AM
Macridin, A
机构：
[1] Univ Groningen, Ctr Mat Sci, Lab Appl & Solid State Phys, NL-9747 AG Groningen, Netherlands
[2] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.87.067204
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the one hole spectral function in a model for LaMnO3 including both the effects of orbital ordering and the quantum decoherence due to the antiferromagnetic coupling between the ferromagnetic layers. We find that the classical picture of a ferromagnetic polaron does not apply and free dispersion is replaced by rigid quasiparticles on the scale of magnetic excitations, while the spectra are dominated by the incoherent spectral weight at high energies. These results have important implications on the in-plane transport and angular resolved photoemission in the manganites.
引用
收藏
页码：672041 / 672044
页数：4
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