In situ photoemission study of La1-xSrxFeO 3 epitaxial thin films

H. Wadati; D. Kobayashi; A. Chikamatsu; R. Hashimoto; M. Takizawa; K. Horiba; H. Kumigashira; T. Mizokawa; A. Fujimori; M. Oshima; M. Lippmaa; M. Kawasaki; H. Koinuma

doi:10.1016/j.elspec.2005.01.166

In situ photoemission study of La_1-xSr_xFeO ₃ epitaxial thin films

H. Wadati, D. Kobayashi, A. Chikamatsu, R. Hashimoto, M. Takizawa, K. Horiba, H. Kumigashira, T. Mizokawa, A. Fujimori, M. Oshima, M. Lippmaa, M. Kawasaki, H. Koinuma

研究成果: Article › 査読

11 被引用数 (Scopus)

抄録

We have performed in situ photoemission and O 1s X-ray absorption studies of La_1-xSr_xFeO₃ (0≤x≤0.67) epitaxial thin films grown by laser molecular beam epitaxy. We found that hole doping induces spectral weight transfer from below the Fermi level to above it across the gap in a highly non-rigid-band-like manner. We also observed the temperature dependence on the spectra of the x=0.67 sample, which shows a charge disproportionation at 190 K. With decreasing temperature, we observed gradual changes of the spectra with spectral weight transfer primarily within the e _g band.

本文言語	English
ページ（範囲）	877-880
ページ数	4
ジャーナル	Journal of Electron Spectroscopy and Related Phenomena
巻	144-147
DOI	https://doi.org/10.1016/j.elspec.2005.01.166
出版ステータス	Published - 2005 6
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
放射線
原子分子物理学および光学
凝縮系物理学
分光学
物理化学および理論化学

文献へのアクセス

10.1016/j.elspec.2005.01.166

他のファイルとリンク

引用スタイル

Wadati, H., Kobayashi, D., Chikamatsu, A., Hashimoto, R., Takizawa, M., Horiba, K., Kumigashira, H., Mizokawa, T., Fujimori, A., Oshima, M., Lippmaa, M., Kawasaki, M., & Koinuma, H. (2005). In situ photoemission study of La_1-xSr_xFeO ₃ epitaxial thin films. Journal of Electron Spectroscopy and Related Phenomena, 144-147, 877-880. https://doi.org/10.1016/j.elspec.2005.01.166

In situ photoemission study of La_1-xSr_xFeO ₃ epitaxial thin films. / Wadati, H.; Kobayashi, D.; Chikamatsu, A.; Hashimoto, R.; Takizawa, M.; Horiba, K.; Kumigashira, H.; Mizokawa, T.; Fujimori, A.; Oshima, M.; Lippmaa, M.; Kawasaki, M.; Koinuma, H.

In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 144-147, 06.2005, p. 877-880.

研究成果: Article › 査読

Wadati, H, Kobayashi, D, Chikamatsu, A, Hashimoto, R, Takizawa, M, Horiba, K, Kumigashira, H, Mizokawa, T, Fujimori, A, Oshima, M, Lippmaa, M, Kawasaki, M & Koinuma, H 2005, 'In situ photoemission study of La_1-xSr_xFeO ₃ epitaxial thin films', Journal of Electron Spectroscopy and Related Phenomena, vol. 144-147, pp. 877-880. https://doi.org/10.1016/j.elspec.2005.01.166

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title = "In situ photoemission study of La1-xSrxFeO 3 epitaxial thin films",

abstract = "We have performed in situ photoemission and O 1s X-ray absorption studies of La1-xSrxFeO3 (0≤x≤0.67) epitaxial thin films grown by laser molecular beam epitaxy. We found that hole doping induces spectral weight transfer from below the Fermi level to above it across the gap in a highly non-rigid-band-like manner. We also observed the temperature dependence on the spectra of the x=0.67 sample, which shows a charge disproportionation at 190 K. With decreasing temperature, we observed gradual changes of the spectra with spectral weight transfer primarily within the e g band.",

keywords = "LaSrFeO, Laser MBE, Photoemission spectroscopy, Thin films",

author = "H. Wadati and D. Kobayashi and A. Chikamatsu and R. Hashimoto and M. Takizawa and K. Horiba and H. Kumigashira and T. Mizokawa and A. Fujimori and M. Oshima and M. Lippmaa and M. Kawasaki and H. Koinuma",

note = "Funding Information: This work was supported by a Grant-in-Aid for Scientific Research (A16204024) from the Japan Society for the Promotion of Science. This work was done under the approval of the Photon Factory Program Advisory Committee (Proposal No. 2003G149) and under Project No. 2002S2-002 at the Institute of Material Structure Science, KEK.",

year = "2005",

month = jun,

doi = "10.1016/j.elspec.2005.01.166",

language = "English",

volume = "144-147",

pages = "877--880",

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AU - Wadati, H.

AU - Kobayashi, D.

AU - Chikamatsu, A.

AU - Hashimoto, R.

AU - Takizawa, M.

AU - Horiba, K.

AU - Kumigashira, H.

AU - Mizokawa, T.

AU - Fujimori, A.

AU - Oshima, M.

AU - Lippmaa, M.

AU - Kawasaki, M.

AU - Koinuma, H.

N1 - Funding Information: This work was supported by a Grant-in-Aid for Scientific Research (A16204024) from the Japan Society for the Promotion of Science. This work was done under the approval of the Photon Factory Program Advisory Committee (Proposal No. 2003G149) and under Project No. 2002S2-002 at the Institute of Material Structure Science, KEK.

PY - 2005/6

Y1 - 2005/6

N2 - We have performed in situ photoemission and O 1s X-ray absorption studies of La1-xSrxFeO3 (0≤x≤0.67) epitaxial thin films grown by laser molecular beam epitaxy. We found that hole doping induces spectral weight transfer from below the Fermi level to above it across the gap in a highly non-rigid-band-like manner. We also observed the temperature dependence on the spectra of the x=0.67 sample, which shows a charge disproportionation at 190 K. With decreasing temperature, we observed gradual changes of the spectra with spectral weight transfer primarily within the e g band.

AB - We have performed in situ photoemission and O 1s X-ray absorption studies of La1-xSrxFeO3 (0≤x≤0.67) epitaxial thin films grown by laser molecular beam epitaxy. We found that hole doping induces spectral weight transfer from below the Fermi level to above it across the gap in a highly non-rigid-band-like manner. We also observed the temperature dependence on the spectra of the x=0.67 sample, which shows a charge disproportionation at 190 K. With decreasing temperature, we observed gradual changes of the spectra with spectral weight transfer primarily within the e g band.

KW - LaSrFeO

KW - Laser MBE

KW - Photoemission spectroscopy

KW - Thin films

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