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Photoemission study of Ag nanofilm grown on pseudomorphic fcc Fe(1 0 0)

✍ Scribed by A. Tanaka; H. Sasaki; K. Takahashi; W. Gondo; S. Suzuki; S. Sato

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
125 KB
Volume
60
Category
Article
ISSN
0022-3697

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✦ Synopsis

An angle-resolved photoemission study for Ag nanofilm grown on pseudomorphic metastable-fcc-phase Fe(1 0 0) has been done in order to investigate in detail the quantized electronic structures. From the low-energy electron-diffraction and angleresolved photoemission spectra, it is found that the present Ag nanofilms were grown in the direction of [1 1 1] on pseudomorphic fcc Fe(1 0 0) substrates. The angle-resolved photoemission spectra of Ag nanofilms grown on pseudomorphic fcc Fe(1 0 0) exhibit the features derived from Shockley-type surface state and additional fine-structures derived from the quantized state of Ag sp valence electron. The experimental nanofilm-thickness dependence of binding energies of these quantized states is compared with the theoretical calculation based on the phase accumulation model, taking into account the phase shifts of electron reflection at both interfaces of the Ag nanofilm. From these results, we discuss the quantized electronic structure in Ag nanofilm grown on pseudomorphic fcc Fe(1 0 0).

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