Author： Wu M.W.
Publisher： Springer Publishing Company
ISSN： 0896-1107
Source： Journal of Superconductivity: Incorporating Novel Magnetism, Vol.14, Iss.2, 2001-04, pp. : 245-259
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
We investigate the spin precession and dephasing of electrons in semiconductors, using the kinetic Bloch equations for a four-spin-band model. Various scatterings, such as carrier–carrier, carrier–phonon, and carrier–impurity scatterings are taken into account. Their contributions to the evolution of carrier distribution, optical coherence, and more importantly, spin coherence in undoped semiconductor quantum wells and in n-type bulk semiconductors are considered. We highlight the importance of the kinetic theory approach by comparing our results with those from Fermi's golden rule. Furthermore, a new spin dephasing mechanism is proposed, that is, spin dephasing due to spin conserving scatterings in the presence of inhomogeneous broadening.
Related content
Access to resources
Recommend
Kinetic Theory of a Spin-1/2 Bose-Condensed Gas
Journal of Low Temperature Physics, Vol. 133, Iss. 5-6, 2003-12 ,pp. :
Determination of effective mass of electrons in ternary compound semiconductors
By Bhattacharyya D. Chaudhuri S. Pal A.K.
Vacuum, Vol. 46, Iss. 1, 1995-01 ,pp. :