Enhancement of valley susceptibility upon complete spin polarization

Medini Padmanabhan; T. Gokmen; M. Shayegan

doi:10.1103/PhysRevB.78.161301

Enhancement of valley susceptibility upon complete spin polarization

Medini Padmanabhan, T. Gokmen, M. Shayegan

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Abstract

Measurements on a two-dimensional electron system confined to an AlAs quantum well reveal that for a given electron density the valley susceptibility, defined as the change in valley population difference per unit strain, is enhanced as the system makes a transition from partial to full spin polarization. This observation is reminiscent of earlier studies in which the spin susceptibility of AlAs electrons was observed to be higher in a single-valley system than its two-valley counterpart.

Original language	English (US)
Article number	161301
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.78.161301
State	Published - Oct 6 2008

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.78.161301

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abstract = "Measurements on a two-dimensional electron system confined to an AlAs quantum well reveal that for a given electron density the valley susceptibility, defined as the change in valley population difference per unit strain, is enhanced as the system makes a transition from partial to full spin polarization. This observation is reminiscent of earlier studies in which the spin susceptibility of AlAs electrons was observed to be higher in a single-valley system than its two-valley counterpart.",

author = "Medini Padmanabhan and T. Gokmen and M. Shayegan",

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AU - Shayegan, M.

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N2 - Measurements on a two-dimensional electron system confined to an AlAs quantum well reveal that for a given electron density the valley susceptibility, defined as the change in valley population difference per unit strain, is enhanced as the system makes a transition from partial to full spin polarization. This observation is reminiscent of earlier studies in which the spin susceptibility of AlAs electrons was observed to be higher in a single-valley system than its two-valley counterpart.

AB - Measurements on a two-dimensional electron system confined to an AlAs quantum well reveal that for a given electron density the valley susceptibility, defined as the change in valley population difference per unit strain, is enhanced as the system makes a transition from partial to full spin polarization. This observation is reminiscent of earlier studies in which the spin susceptibility of AlAs electrons was observed to be higher in a single-valley system than its two-valley counterpart.

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Enhancement of valley susceptibility upon complete spin polarization

Abstract

All Science Journal Classification (ASJC) codes

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