Anomalous spin splitting of two-dimensional electrons in an alas quantum well

S. J. Papadakis; E. P. De Poortere; M. Shayegan

doi:10.1103/PhysRevB.59.R12743

Anomalous spin splitting of two-dimensional electrons in an alas quantum well

S. J. Papadakis, E. P. De Poortere, M. Shayegan

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26 Scopus citations

Abstract

We measure the effective Landé g-factor of two-dimensional electrons in a modulation-doped AlAs quantum well by tilting the sample in a magnetic field and monitoring the evolution of the magnetoresistance oscillations. The data reveal that (Formula presented) which is much enhanced with respect to the reported bulk value of 1.9. Surprisingly, in a large range of magnetic field and Landau level fillings, the value of the enhanced g-factor appears to be constant.

Original language	English (US)
Pages (from-to)	R12743-R12746
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	59
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevB.59.R12743
State	Published - 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.59.R12743

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title = "Anomalous spin splitting of two-dimensional electrons in an alas quantum well",

abstract = "We measure the effective Land{\'e} g-factor of two-dimensional electrons in a modulation-doped AlAs quantum well by tilting the sample in a magnetic field and monitoring the evolution of the magnetoresistance oscillations. The data reveal that (Formula presented) which is much enhanced with respect to the reported bulk value of 1.9. Surprisingly, in a large range of magnetic field and Landau level fillings, the value of the enhanced g-factor appears to be constant.",

author = "Papadakis, {S. J.} and {De Poortere}, {E. P.} and M. Shayegan",

year = "1999",

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AU - De Poortere, E. P.

AU - Shayegan, M.

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N2 - We measure the effective Landé g-factor of two-dimensional electrons in a modulation-doped AlAs quantum well by tilting the sample in a magnetic field and monitoring the evolution of the magnetoresistance oscillations. The data reveal that (Formula presented) which is much enhanced with respect to the reported bulk value of 1.9. Surprisingly, in a large range of magnetic field and Landau level fillings, the value of the enhanced g-factor appears to be constant.

AB - We measure the effective Landé g-factor of two-dimensional electrons in a modulation-doped AlAs quantum well by tilting the sample in a magnetic field and monitoring the evolution of the magnetoresistance oscillations. The data reveal that (Formula presented) which is much enhanced with respect to the reported bulk value of 1.9. Surprisingly, in a large range of magnetic field and Landau level fillings, the value of the enhanced g-factor appears to be constant.

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

Anomalous spin splitting of two-dimensional electrons in an alas quantum well

Abstract

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