References:

[1]. J. Fabian and S. Das Sarma, J. Vac. Sci. Tech. B 17 (1999) 1708.
[2]. G.E.Pikus, A.N.Titkov, in Optical Orientation, Eds. F.Meier, B.P.Zakharchenya (Amsterdam,1984).

Quiz 4:

(Q4.1). What is spin-relaxation?
(Q4.2). What are the various sources in a solid to develop the effective magnetic field, which alters the spin state?
(Q4.3). What is the role of damping on the alignment of magnetic moment to the applied magnetic field?
(Q4.4). Describe briefly the basic concepts of Elliott-Yafat mechanism?
(Q4.5). Consider two situations where an ensemble of electrons drifting and diffusing in a solid. If the electrons velocity changes as delta function in one situation and Gaussian function in another situation, in which case the spin relaxation process for D'yakonov-Perel mechanism is faster? Explain Why?
(Q4.6). Can the magnetic field generated by a nuclear spin cause complete loss of electron spin polarization?