Tunneling-driven quantum phase transitions in mesoscopic commensurate systems of strongly correlated electrons

被引：7
|
作者：
Bâldea, I
Köppel, H
Cederbaum, LS
机构：
[1] Univ Karlsruhe, Inst Phys, D-76129 Karlsruhe, Germany
[2] Univ Heidelberg, Inst Phys Chem, D-69120 Heidelberg, Germany
来源：
SOLID STATE COMMUNICATIONS | 2000年 / 115卷 / 11期
关键词：
nanostructures; phase transitions; tunneling;
D O I：
10.1016/S0038-1098(00)00244-1
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We present an example demonstrating that CDW-to-CDW and SDW-to-SDW quantum phase transitions driven by tunneling between states characterized by charge and spin density waves of different symmetries can occur in finite commensurate systems of strongly correlated electrons. These transitions could be studied experimentally, e.g. by optical absorption in mesoscopic systems. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：593 / 597
页数：5
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