Giant anisotropy of Zeeman splitting of quantum confined acceptors in Si/Ge

被引：18

作者：

Haendel, KM

Winkler, R

Denker, U

Schmidt, OG

Haug, RJ

机构：

[1] Leibniz Univ Hannover, Inst Festkorperphys, D-30167 Hannover, Germany

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.96.086403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Shallow acceptor levels in Si/Ge/Si quantum well heterostructures are characterized by resonant-tunneling spectroscopy in the presence of high magnetic fields. In a perpendicular magnetic field we observe a linear Zeeman splitting of the acceptor levels. In an in-plane field, on the other hand, the Zeeman splitting is strongly suppressed. This anisotropic Zeeman splitting is shown to be a consequence of the huge light-hole-heavy-hole splitting caused by a large biaxial strain and a strong quantum confinement in the Ge quantum well.

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页码：1 / 4

页数：4

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