Temperature-dependence of the electronic structure of La1-x Srx MnO3 thin films studied by in situ photoemission spectroscopy

K. Horiba; A. Chikamatsu; Hiroshi Kumigashira; M. Oshima; H. Wadati; A. Fujimori; M. Lippmaa; M. Kawasaki; H. Koinuma

doi:10.1016/j.elspec.2006.12.036

Temperature-dependence of the electronic structure of La_1-x Sr_x MnO₃ thin films studied by in situ photoemission spectroscopy

K. Horiba, A. Chikamatsu, Hiroshi Kumigashira, M. Oshima, H. Wadati, A. Fujimori, M. Lippmaa, M. Kawasaki, H. Koinuma

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

We have performed an in situ photoemission spectroscopy (PES) of well-ordered surfaces of high-quality epitaxial La_1-x Sr_x MnO₃(LSMO) thin films to investigate the temperature-dependent changes in the electronic structure of LSMO in detail. For ferromagnetic metal LSMO with x = 0.4, the spectral intensity of the e_g states near the Fermi level (E_F) significantly increases with decreasing temperature. This result suggests that the stabilization of ferromagnetic ordering causes the enhancement of spectral weight near E_F.

Original language	English
Pages (from-to)	375-378
Number of pages	4
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	156-158
DOIs	https://doi.org/10.1016/j.elspec.2006.12.036
Publication status	Published - 2007 May 1
Externally published	Yes

Keywords

In situ photoemission spectroscopy
La Sr MnO thin film
Laser molecular beam epitaxy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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Horiba, K., Chikamatsu, A., Kumigashira, H., Oshima, M., Wadati, H., Fujimori, A., Lippmaa, M., Kawasaki, M., & Koinuma, H. (2007). Temperature-dependence of the electronic structure of La_1-x Sr_x MnO₃ thin films studied by in situ photoemission spectroscopy. Journal of Electron Spectroscopy and Related Phenomena, 156-158, 375-378. https://doi.org/10.1016/j.elspec.2006.12.036

Temperature-dependence of the electronic structure of La_1-x Sr_x MnO₃ thin films studied by in situ photoemission spectroscopy. / Horiba, K.; Chikamatsu, A.; Kumigashira, Hiroshi; Oshima, M.; Wadati, H.; Fujimori, A.; Lippmaa, M.; Kawasaki, M.; Koinuma, H.

In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 156-158, 01.05.2007, p. 375-378.

Research output: Contribution to journal › Article

Horiba, K, Chikamatsu, A, Kumigashira, H, Oshima, M, Wadati, H, Fujimori, A, Lippmaa, M, Kawasaki, M & Koinuma, H 2007, 'Temperature-dependence of the electronic structure of La_1-x Sr_x MnO₃ thin films studied by in situ photoemission spectroscopy', Journal of Electron Spectroscopy and Related Phenomena, vol. 156-158, pp. 375-378. https://doi.org/10.1016/j.elspec.2006.12.036

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abstract = "We have performed an in situ photoemission spectroscopy (PES) of well-ordered surfaces of high-quality epitaxial La1-x Srx MnO3(LSMO) thin films to investigate the temperature-dependent changes in the electronic structure of LSMO in detail. For ferromagnetic metal LSMO with x = 0.4, the spectral intensity of the eg states near the Fermi level (EF) significantly increases with decreasing temperature. This result suggests that the stabilization of ferromagnetic ordering causes the enhancement of spectral weight near EF.",

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AU - Horiba, K.

AU - Chikamatsu, A.

AU - Kumigashira, Hiroshi

AU - Oshima, M.

AU - Wadati, H.

AU - Fujimori, A.

AU - Lippmaa, M.

AU - Kawasaki, M.

AU - Koinuma, H.

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N2 - We have performed an in situ photoemission spectroscopy (PES) of well-ordered surfaces of high-quality epitaxial La1-x Srx MnO3(LSMO) thin films to investigate the temperature-dependent changes in the electronic structure of LSMO in detail. For ferromagnetic metal LSMO with x = 0.4, the spectral intensity of the eg states near the Fermi level (EF) significantly increases with decreasing temperature. This result suggests that the stabilization of ferromagnetic ordering causes the enhancement of spectral weight near EF.

AB - We have performed an in situ photoemission spectroscopy (PES) of well-ordered surfaces of high-quality epitaxial La1-x Srx MnO3(LSMO) thin films to investigate the temperature-dependent changes in the electronic structure of LSMO in detail. For ferromagnetic metal LSMO with x = 0.4, the spectral intensity of the eg states near the Fermi level (EF) significantly increases with decreasing temperature. This result suggests that the stabilization of ferromagnetic ordering causes the enhancement of spectral weight near EF.

KW - In situ photoemission spectroscopy

KW - La Sr MnO thin film

KW - Laser molecular beam epitaxy

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