In situ photoemission spectroscopic study on La1-x Sr xMnO3 thin films grown by combinatorial laser-MBE

H. Kumigashira, K. Horiba, H. Ohguchi, D. Kobayashi, M. Oshima, N. Nakagawa, T. Ohnishi, M. Lippmaa, K. Ono, M. Kawasaki, H. Koinuma

研究成果: Article査読

12 被引用数 (Scopus)


We have performed an in situ synchrotron radiation photoemission spectroscopy (SRPES) on well-ordered surfaces of La1-xSr xMnO3 (x = 0, 0.2, 0.4, 0.55) thin films grown using laser molecular beam epitaxy (laser-MBE). The laser MBE chamber is connected to a high-resolution SRPES system, where the grown films are transferred from the laser MBE to the SRPES chamber without breaking the ultrahigh-vacuum. In sharp contrast with the previous PES spectra recorded from scraped polycrystalline samples, the SRPES spectra exhibit an existence of prominent Mn 3d eg states near the Fermi level. On the other hand, O 1s X-ray absorption spectra for laser-MBE-grown samples are in good agreement with the scraped ones. These results clearly indicate the importance of in situ SRPES measurement on well-ordered surfaces of transition metal oxides for revealing their intrinsic electronic structures.

ジャーナルJournal of Electron Spectroscopy and Related Phenomena
出版ステータスPublished - 2004 5

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


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