Spin dependence of electron effective masses in InGaAs/InAlAs quantum well

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DOIResolve DOI: http://doi.org/10.1063/1.3633509
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TypeArticle
Journal titleJournal of Applied Physics
ISSN0021-8979
Volume110
Issue6
Article number63707
SubjectAnalytical method; Effective mass; Electron effective mass; FFT analysis; InGaAs/InAlAs quantum well; Magneto-transport measurement; Quantum well; Simultaneous fitting; Spin dependence; Spin-down; Spin-down electrons; Spin-polarized Fermi liquid; Spin-up; Zero-field spin splitting; Fast Fourier transforms; Fermi liquids; Gallium; Semiconductor quantum wells; Two dimensional electron gas
AbstractThe effective masses for spin-up and spin-down electrons of a partially spin-polarized Fermi liquid are theoretically expected to be different. We extract the spin-up and spin-down effective masses from magnetotransport measurements at different temperatures for a two-dimensional electron gas in an In0.65Ga0.35As/In0.52Al0.48As quantum well exhibiting zero-field spin splitting. We apply two analytical methods, one involving the simultaneous fitting of fast Fourier transform (FFT) spectra and the other involving inverse FFT analysis. Both methods confirm that the effective masses for spin-up and spin-down are different, consistent with theoretical expectations. © 2011 American Institute of Physics.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences (IMS-ISM)
Peer reviewedYes
NPARC number21271172
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Record identifierd8ce5cb8-b3ce-47e0-aa2e-37f843d00fb0
Record created2014-03-24
Record modified2016-05-09
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