Quasi-one-dimensional quantized states in an epitaxial Ag film on a one-dimensional surface superstructure.
The in-plane energy dispersion of quantized states in an ultrathin Ag film formed on the one-dimensional (1D) surface superstructure Si(111)-(4 x 1)-In shows clear 1D anisotropy instead of the isotropic two-dimensional free-electron-like behavior expected for an isolated metal film. The present photoemission results demonstrate that an atomic layer at the film-substrate interface can regulate the dimensionality of electron motion in quantum films.
Nagamura
Naoka
N
Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Matsuda
Iwao
I
Miyata
Nobuhiro
N
Hirahara
Toru
T
Hasegawa
Shuji
S
Uchihashi
Takashi
T