Interfering Bloch waves in a 1D electron system

被引：5
|
作者：
Heimbuch, R. [1 ]
van Houselt, A. [1 ]
Farmanbar, M. [1 ]
Brocks, G. [1 ]
Zandvliet, H. J. W. [1 ]
机构：
[1] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 01期
关键词：
LUTTINGER LIQUID; GE(001); CHAINS; GAS;
D O I：
10.1088/0953-8984/25/1/014014
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Using low-temperature scanning tunnelling spectroscopy we have studied the spatial variation of confined electronic states between neighbouring atomic chains on a Ge(001)/Pt surface. The quasi-one-dimensional electronic states reside in the troughs between the atomic chains and exhibit a profound Bloch character along the chain direction. In the proximity of defects an enhancement of the oscillatory standing wave pattern in the density of states is found. The spatial variation of the standing wave pattern can be explained by an interference of incoming and reflected Bloch waves.
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页数：5
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