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Journal Article

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

MPS-Authors
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Denker,  U.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280485

Schmidt,  O. G.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;
Scientific Facility Nanostructuring Lab (Jürgen Weis), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280029

Haug,  R. J.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Haendel, K. M., Winkler, R., Denker, U., Schmidt, O. G., & Haug, R. J. (2006). Giant anisotropy of Zeeman splitting of quantum confined acceptors in Si/Ge. Physical Review Letters, 96(8): 086403.


Cite as: https://hdl.handle.net/21.11116/0000-000F-02DD-6
Abstract
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.