Electronic structures of electron-doped manganite:: La0.7Ce0.3MnO3

被引：12

作者：

Min, BI ^{[1
]}

Kwon, S

Lee, BW

Kang, JS

机构：

[1] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

[2] Hankuk Univ Foreign Studies, Dept Phys, Yongin 449791, Kyungki, South Korea

[3] Catholic Univ, Dept Phys, Puchon 422743, South Korea

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2001年 / 114卷

关键词：

perovskite-manganites; photoemission; colossal magnetoresistance; electronic structures;

D O I：

10.1016/S0368-2048(00)00245-0

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The electronic structure of the electron-doped manganite La0.7Ce0.3MnO3 (LCeMO) has been investigated by performing the band calculations with the local spin-density functional approximation (LSDA), which are then compared to the photoemission spectroscopy (PES) data. In order to investigate the effect of the Mn 3d on-site Coulomb correlation on the electronic structure of LCeMO, we have calculated the Mn 3d partial density of states (PDOS) by performing the LSDA+U calculations. Our calculations show that the Mn 3d on-site Coulomb correlation accounts for the major features in the experimental PES spectra, such as the peak positions and the reduced spectral weight near the Fermi level. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：801 / 805

页数：5

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