Temperature-dependent valence-band photoemission spectra of La1-xSrxMnO3

Saitoh, T and Sekiyama, A and Kobayashi, K and Mizokawa, T and Fujimori, A and Sarma, DD and Takeda, Y and Takano, M (1997) Temperature-dependent valence-band photoemission spectra of La1-xSrxMnO3. In: Physical Review B: Condensed Matter, 56 (14). pp. 8836-8840.

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Abstract

We have studied the temperature dependence of the photoemission spectra of La1-xSrxMnO3 (x=0.0, 0.2, and 0.4) and found that the spectral line shape dramatically changes in the entire valence-band region, particularly for x=0.2 and 0.4. By contrast, the spectra of La0.6Sr0.4CoO3 show no significant temperature dependence. From comparison between the temperature-and composition-(x) dependent spectral changes and the temperature-composition phase diagram of La1-xSrxMnO3, we suggest that the changes are related to the degree of hole localization on oxygen p orbitals, which is influenced by electron-lattice coupling and magnetic correlations.

Item Type:	Journal Article
Publication:	Physical Review B: Condensed Matter
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	22 Jun 2011 07:25
Last Modified:	22 Jun 2011 07:25
URI:	http://eprints.iisc.ac.in/id/eprint/38530

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