PHOTOELECTRON-SPECTROSCOPY INVESTIGATION OF THE SPIN-STATE TRANSITION IN LACOO3

被引：69

作者：

BARMAN, SR

SARMA, DD

机构：

[1] Solid State and Structural Chemistry Unit, Indian Institute of Science

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.49.13979

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the valence-band and Co 2p photoemission spectra of LaCoO3 obtained at different temperatures (100, 300, and 573 K). Analysis of the core-level spectrum in terms of a configuration interaction model suggests that both low- and high-spin states coexist at the low temperature (100 K). It also indicates that there is a decrease in the low-spin contribution at 573 K related to local structural changes. Photoemission spectra of the valence-band region further support this interpretation.

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页码：13979 / 13982

页数：4

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