Spin-resolved photoemission studies of epitaxial Fe3O4(100) thin films

被引：55

作者：

Huang, DJ

Chang, CF

Chen, J

Tjeng, LH

Rata, AD

Wu, WP

Chung, SC

Lin, HJ

Hibma, T

Chen, CT

机构：

[1] Synchrotron Radiat Res Ctr, Hsinchu 30077, Taiwan

[2] Natl Chung Cheng Univ, Dept Phys, Chiayi 62107, Taiwan

[3] Univ Groningen, Solid State Phys Lab, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands

[4] Univ Groningen, Dept Phys Chem, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands

[5] Natl Chang Hua Univ Educ, Dept Phys, Changhua 500, Taiwan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 239卷 / 1-3期

关键词：

magnetic thin films; electronic structure; half-metal; photoemission;

D O I：

10.1016/S0304-8853(01)00591-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In situ spin-resolved photoemission studies have been performed on expitaxial Fe3O4 thin films grown on MgO(1 0 0). The spin polarization of the valence band at the Fermi level has been found to be -55.5% and not -100% as predicted by the first-principles calculations. Our spin-resolved measurements provide direct experimental evidence showing that Fe3O4 is not a half-metal as a result of electron-electron correlation effects, and that Fe3O4 should be considered as a strongly correlated system. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：261 / 265

页数：5

共 24 条

[1] OBSERVATION OF SPIN-POLARIZED ELECTRON LEVELS IN FERRITES [J].