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  Electron g-factor anisotropy in GaAs/Al1-xGaxAs quantum wells of different symmetry

Nefyodov, Y. A., Shchepetilnikov, A. V., Kukushkin, I. V., Dietsche, W., & Schmult, S. (2011). Electron g-factor anisotropy in GaAs/Al1-xGaxAs quantum wells of different symmetry. Physical Review B, 84(23): 233302.

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Nefyodov, Y. A., Author
Shchepetilnikov, A. V., Author
Kukushkin, I. V.1, 2, Author           
Dietsche, W.2, 3, 4, Author           
Schmult, S., Author
Affiliations:
1Research Group Solid State Nanophysics (Jurgen H. Smet), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370489              
2Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370504              
3Scientific Facility Nanostructuring Lab (Jürgen Weis), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370499              
4Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370501              

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 Abstract: The anisotropy of the electron g factor is investigated in symmetrically (SQW) and asymmetrically (AQW) doped 20-nm GaAs/AlGaAs quantum wells, grown in the [001] direction. Applied was the electrically detected electron spin resonance technique. The AQW demonstrates strong twofold in-plane g-factor anisotropy with the [110] and [1 (1) over bar0] principal axes. This can be readily ascribed to the internal electric field asymmetry as caused by single-side doping. The SQW is shown to have 10 times as weak (but still detectable) anisotropy with the same principal axes. The linear (in the magnetic field) corrections to the g factor were also carefully measured. The a tensor of these corrections is shown to have at least three different nonzero components, namely, a(zzz), a(xxz), and a(yyz)

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Language(s): eng - English
 Dates: 2011
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 581058
ISI: 000297802000002
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Title: Physical Review B
  Alternative Title : Phys. Rev. B
Source Genre: Journal
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Publ. Info: COLLEGE PK : AMER PHYSICAL SOC
Pages: - Volume / Issue: 84 (23) Sequence Number: 233302 Start / End Page: - Identifier: ISSN: 1098-0121