ELECTRONIC-STRUCTURES OF ALPHA-FE2O3 AND FE3O4 FROM O K-EDGE ABSORPTION AND EMISSION-SPECTROSCOPY

被引：74

作者：

MA, Y

JOHNSON, PD

WASSDAHL, N

GUO, J

SKYTT, P

NORDGREN, J

KEVAN, SD

RUBENSSON, JE

BOSKE, T

EBERHARDT, W

机构：

[1] UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195 USA

[2] PACIFIC NW LAB, MOLEC SCI RES CTR, RICHLAND, WA 99352 USA

[3] UNIV UPPSALA, DEPT PHYS, S-75105 UPPSALA, SWEDEN

[4] UNIV OREGON, DEPT PHYS, EUGENE, OR 97403 USA

[5] FORSCHUNGSZENTRUM JULICH, INST FESTKORPERFORSCH, W-5170 JULICH 1, GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.48.2109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present O K-edge absorption and emission spectra for alpha-Fe2O3 and Fe3O4 obtained using a high-resolution-undulator soft-x-ray radiation source. The occupied and the unoccupied O p densities of states are obtained and compared with the valence-band photoemission results. While these results confirm that alpha-Fe2O3 can be classified as a charge transfer or an intermediate-type insulator, they suggest that Fe3O4 is more likely of the Mott-Hubbard type. The excitation-energy dependence of the emission spectra is also discussed.

引用

页码：2109 / 2111

页数：3

共 12 条

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