On the Spin States of Electrons in a Double Quantum Dot in a Two-Dimensional Topological Insulator with Spin-Orbit Interaction

被引：2
|
作者：
Sukhanov, A. A. [1 ]
Sablikov, V. A. [1 ]
机构：
[1] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Fryazino Branch, Fryazino 141190, Moscow Oblast, Russia
来源：
SEMICONDUCTORS | 2019年 / 53卷 / 09期
关键词：
topological insulators; spin-orbit interaction; singlet-triplet transition; quantum dot;
D O I：
10.1134/S1063782619090215
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The spectra and spin structure of the states of two interacting electrons localized in a double quantum dot in a two-dimensional topological insulator with spin-orbit interaction are investigated. It is found that, in such a system, a singlet-triplet transition in the ground state without a magnetic field can be implemented. Spin-orbit interaction leads to the splitting of polarized triplet levels and to anticrossing, when one of them crosses the singlet.
引用
收藏
页码：1229 / 1233
页数：5
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