Enhancement of valley susceptibility upon complete spin-polarization

Details Enhancement of valley susceptibility upon complete spin-polarization Enhancement of valley susceptibility upon complete spin-polarization

2008-10-13

arxiv.org/abs/0810.2142v1

Phys. Rev. B 78, 161301(R) (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.78.161301

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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