Magnetization of two-dimensional quantum rings

被引：0

作者：

Aichinger, M. ^{[1
]}

Chin, S. A. ^{[2
]}

Krotscheck, E. ^{[1
]}

Raesaenen, E. ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Inst Theoret Phys, A-4040 Linz, Austria

[2] Texas A&M Univ, Dept Phys, College Stn 77843, TX 77843 USA

来源：

LOW TEMPERATURE PHYSICS, PTS A AND B | 2006年 / 850卷

基金：

美国国家科学基金会; 奥地利科学基金会;

关键词：

density-functional theory; spin polarization; quantum Hall state;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We use spin-density-functional theory to study the magnetization of quantum rings. We study in this work two-dimensional systems containing up to 24 electons in a perpendicular magnetic field. Increasing the field leads to quasiperiodic Aharonov-Bohm oscillations and to different magnetic regimes with characteristic spin properties. We find several phases reminiscent of both integer and fractional quantum-Hall states. We discuss the properties of these states in quantum rings and suggest possible measurements to observe them experimentally.

引用

页码：1401 / +

页数：2

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