Effects of strain on the electronic structures and TC's of the la0.67Ca0.33MnO3 and la0.8Ba 0.2MnO3 thin films deposited on SrTiO3

Hsiung Chou; M. H. Tsai; F. P. Yuan; S. K. Hsu; C. B. Wu; Jiunn-Yuan Lin; C. I. Tsai; Y. H. Tang

doi:10.1063/1.2335973

Effects of strain on the electronic structures and T_C's of the la_0.67Ca_0.33MnO₃ and la_0.8Ba _0.2MnO₃ thin films deposited on SrTiO₃

Hsiung Chou, M. H. Tsai, F. P. Yuan, S. K. Hsu, C. B. Wu, Jiunn-Yuan Lin, C. I. Tsai, Y. H. Tang

Institute of Physics

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18 Scopus citations

Abstract

The strain effects on the electronic structures of La_0.67Ca _0.33MnO₃ (LCMO) and La_0.8Ba _0.2MnO₃ (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.

Original language	English
Article number	082511
Journal	Applied Physics Letters
Volume	89
Issue number	8
DOIs	https://doi.org/10.1063/1.2335973
State	Published - 31 Aug 2006

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title = "Effects of strain on the electronic structures and TC's of the la0.67Ca0.33MnO3 and la0.8Ba 0.2MnO3 thin films deposited on SrTiO3",

abstract = "The strain effects on the electronic structures of La0.67Ca 0.33MnO3 (LCMO) and La0.8Ba 0.2MnO3 (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 eg, 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 TC for LCMO. For LBMO, the small compressive strain enhances slightly La-O and Ba-O hybridization and T C.",

author = "Hsiung Chou and Tsai, {M. H.} and Yuan, {F. P.} and Hsu, {S. K.} and Wu, {C. B.} and Jiunn-Yuan Lin and Tsai, {C. I.} and Tang, {Y. H.}",

year = "2006",

month = aug,

day = "31",

doi = "10.1063/1.2335973",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Effects of strain on the electronic structures and TC's of the la0.67Ca0.33MnO3 and la0.8Ba 0.2MnO3 thin films deposited on SrTiO3

AU - Chou, Hsiung

AU - Tsai, M. H.

AU - Yuan, F. P.

AU - Hsu, S. K.

AU - Wu, C. B.

AU - Lin, Jiunn-Yuan

AU - Tsai, C. I.

AU - Tang, Y. H.

PY - 2006/8/31

Y1 - 2006/8/31

N2 - The strain effects on the electronic structures of La0.67Ca 0.33MnO3 (LCMO) and La0.8Ba 0.2MnO3 (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 eg, 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 TC for LCMO. For LBMO, the small compressive strain enhances slightly La-O and Ba-O hybridization and T C.

AB - The strain effects on the electronic structures of La0.67Ca 0.33MnO3 (LCMO) and La0.8Ba 0.2MnO3 (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 eg, 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 TC for LCMO. For LBMO, the small compressive strain enhances slightly La-O and Ba-O hybridization and T C.

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U2 - 10.1063/1.2335973

DO - 10.1063/1.2335973

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SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Effects of strain on the electronic structures and T_C's of the la_0.67Ca_0.33MnO₃ and la_0.8Ba _0.2MnO₃ thin films deposited on SrTiO₃

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