Nonlinear Zeeman Splitting of Holes in Doped GaAs Heterostructures

• Authors: M. Kubisa , K. Ryczko , J. Jadczak , L. Bryja , J. Misiewicz , M. Potemski
• Languages of publication: EN

Abstracts

EN

Polarization-resolved photoluminescence from two-dimensional GaAs/GaAlAs heterostructures doped with acceptors was studied in high magnetic fields. Measurements were carried out in low temperatures up to 2 K and magnetic field up to 21 T. Experiments performed in the Faraday configuration enabled to resolve hole states with different spin orientation. We observed a nonlinear behavior of valence-band g factor in strong magnetic fields. To explain obtained results, a detailed theoretical calculation was carried out based on the Luttinger model for valence-band states. We examined the spin splitting of hole levels under the influence of both external magnetic field and built-in electric field existing in doped heterostructures. Changes of hole g factor with the width of the structure and the density of two-dimensional carriers are discussed.

Keywords

EN

75.75.-c

Discipline

• 75.75.-c: Magnetic properties of nanostructures

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 5
• Pages: 609-611

Dates

published

2011-05

Contributors

author

M. Kubisa

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

K. Ryczko

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

J. Jadczak

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

L. Bryja

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

J. Misiewicz

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

M. Potemski

• Grenoble High Magnetic Field Laboratory, CNRS, Grenoble, France

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Identifiers

DOI

10.12693/APhysPolA.119.609