Spin Orientation of Holes in Quantum Wells

Details Spin Orientation of Holes in Quantum Wells Spin Orientation of Holes in Quantum Wells

2008-11-11

arxiv.org/abs/0811.1744v1

Semicond. Sci. Technol 23, 114017 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages, 8 figures

Scientific paper

10.1088/0268-1242/23/11/114017

This paper reviews the spin orientation of spin-3/2 holes in quantum wells. We discuss the Zeeman and Rashba spin splitting in hole systems that are qualitatively different from their counterparts in electron systems. We show how a systematic understanding of the unusual spin-dependent phenomena in hole systems can be gained using a multipole expansion of the spin density matrix. As an example we discuss spin precession in hole systems that can give rise to an alternating spin polarization. Finally, we discuss the qualitatively different regimes of hole spin polarization decay in clean and dirty samples.

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