Abstract
We have performed an in situ resonant photoemission (RPES) study on well-ordered surfaces of La 0.6Sr 0.4MnO 3 thin films grown by laser molecular beam epitaxy. In sharp contrast with the previous photoemission results, the RPES spectra exhibit clear evidence of a Fermi cutoff. This result suggests that the importance of in situ photoemission measurement on well-ordered surfaces of transition metal oxides for revealing their intrinsic electronic structures.
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