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Two aspects related to valence-band hole spin are considered: spin surfaces in p-type semiconductors and flipping of the hole spin by an ultrashort electric field pulse. It is shown that heavy, light, and split-off holes have different spin surfaces. In general, the shape of the surface in real semiconductors may depend on the hole wave vector direction and magnitude. The concept of spin surface is...
Coherent properties of the hole spin in an electric field are investigated. The tunneling between valence bands is used to control the transitions between the spin states. Extensive numerical studies using the time-dependent Schrödinger equation for valence band are presented to demonstrate the characteristic properties of the hole spin dynamics in dc, harmonic, as well as optimized electric fields...
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