Quasi-one-dimensional quantized states in an epitaxial Ag film on a one-dimensional surface superstructure.
Quasi-one-dimensional quantized states in an epitaxial Ag film on a one-dimensional surface superstructure.
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DOI：
10.1103/physrevlett.96.256801
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发表时间：
2006-06
影响因子：
8.6
通讯作者：
N. Nagamura;I. Matsuda;N. Miyata;T. Hirahara;S. Hasegawa;T. Uchihashi
中科院分区：
文献类型：
--
作者：
N. Nagamura;I. Matsuda;N. Miyata;T. Hirahara;S. Hasegawa;T. Uchihashi
在一维（1D）表面超结构Si（111）-（4 x 1）-In上形成的Ag薄膜中的量子化态的面内能量色散显示出明显的1D各向异性，而不是孤立金属薄膜所期望的各向同性二维自由电子样行为。目前的光电发射结果表明，在薄膜-衬底界面的原子层可以调节量子薄膜中的电子运动的维数。
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.