標題: Effects of strain on the electronic structures and T-C's of the La0.67Ca0.33MnO3 and La0.8Ba0.2MnO3 thin films deposited on SrTiO3
作者: Chou, Hsiung
Tsai, M. -H.
Yuan, F. P.
Hsu, S. K.
Wu, C. B.
Lin, J. Y.
Tsai, C. I.
Tang, Y. -H.
物理研究所
Institute of Physics
公開日期: 21-Aug-2006
摘要: The strain effects on the electronic structures of La0.67Ca0.33MnO3 (LCMO) and La0.8Ba0.2MnO3 (LBMO) thin films have been studied by O K-edge x-ray absorption near edge structure (XANES) spectroscopy. For LCMO, the first-principles calculations reveal that the features in the XANES spectra are associated with hybridized states between O 2p and Mn minority-spin 3d t(2g) and e(g), La 5d/Ca 3d, and Mn 4s/Ca 4p states. An analysis of these features shows that the tensile strain decreases substantially La-O and Ca-O hybridization and T-C for LCMO. For LBMO, the small compressive strain enhances slightly La-O and Ba-O hybridization and T-C. (c) 2006 American Institute of Physics.
URI: http://dx.doi.org/10.1063/1.2335973
http://hdl.handle.net/11536/11908
ISSN: 0003-6951
DOI: 10.1063/1.2335973
期刊: APPLIED PHYSICS LETTERS
Volume: 89
Issue: 8
結束頁: 
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