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Thermally induced spin polarization and thermal conductivities in a spin–orbit-coupled two-dimensional electron gas

✍ Scribed by C.M. Wang; M.Q. Pang

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
304 KB
Volume
150
Category
Article
ISSN
0038-1098

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✦ Synopsis

The thermal conductivities and spin polarization induced by the temperature gradient are investigated in a Rashba spin-orbit-coupled two-dimensional electron gas. In this spin-orbit-coupled system in the presence of nonmagnetic or magnetic electron-impurity scattering, the Wiedemann-Franz law still holds. However, the spin polarization induced by the temperature gradient strongly depends on the property of impurities. The components of spin accumulation both perpendicular and parallel to the direction of the temperature gradient, and the thermally induced charge Hall conductivity may be nonzero for magnetic disorders.

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Spin polarization in a two-dimensional electron gas modulated by ferromagnetic and Schottky metal stripes
✍ J.D. Lu; H.Y. Liu 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 639 KB

We theoretically study the spin-dependent electron transport in a two-dimensional electron gas modulated by ferromagnetic and Schottky metal stripes. The numerical results show that the large spin polarization can be achieved in such a device, and it is obviously dependent on the width of the Schott