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.
| Original language | English |
|---|---|
| Pages (from-to) | 877-880 |
| Number of pages | 4 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 144-147 |
| DOIs | |
| Publication status | Published - 2005 Jun |
| Externally published | Yes |
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Keywords
- LaSrFeO
- Laser MBE
- Photoemission spectroscopy
- Thin films
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Atomic and Molecular Physics, and Optics
- Surfaces and Interfaces
Cite this
In situ photoemission study of La1-xSrxFeO 3 epitaxial thin films. / Wadati, H.; Kobayashi, D.; Chikamatsu, A.; Hashimoto, R.; Takizawa, M.; Horiba, K.; Kumigashira, H.; Mizokawa, Takashi; 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.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - In situ photoemission study of La1-xSrxFeO 3 epitaxial thin films
AU - Wadati, H.
AU - Kobayashi, D.
AU - Chikamatsu, A.
AU - Hashimoto, R.
AU - Takizawa, M.
AU - Horiba, K.
AU - Kumigashira, H.
AU - Mizokawa, Takashi
AU - Fujimori, A.
AU - Oshima, M.
AU - Lippmaa, M.
AU - Kawasaki, M.
AU - Koinuma, H.
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
UR - http://www.scopus.com/inward/record.url?scp=20244371187&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=20244371187&partnerID=8YFLogxK
U2 - 10.1016/j.elspec.2005.01.166
DO - 10.1016/j.elspec.2005.01.166
M3 - Article
VL - 144-147
SP - 877
EP - 880
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
ER -