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Large variations in the hole spin splitting of quantum-wire subband edges

被引：27
作者：
Csontos, Dan
Zulicke, Ulrich
机构：
[1] Massey Univ, Inst Fundamental Sci, Palmerston North 4442, New Zealand
[2] Massey Univ, MacDiamond Inst Adv Mat & Nanotechnol, Palmerston North 4442, New Zealand
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.76.073313
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study Zeeman splitting of zone-center subband edges in a cylindrical hole wire subject to a magnetic field parallel to its axis. The g factor turns out to fluctuate strongly as a function of wire subband index, assuming values that differ substantially from those found in higher-dimensional systems. We analyze the spin properties of hole-wire states using invariants of the spin-3/2 density matrix and find a strong correlation between g-factor value and the profile of hole spin-polarization density. Our results suggest possibilities for confinement engineering of hole spin splittings.
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页数：4
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