𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Theory of the coherent spin dynamics in magnetic semiconductor quantum wells

✍ Scribed by N. Linder; L.J. Sham

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
90 KB
Volume
2
Category
Article
ISSN
1386-9477

No coin nor oath required. For personal study only.

✦ Synopsis

We present a theory of time-resolved Faraday rotation for semimagnetic quantum well structures in the Voigt conΓΏguration. The nonlinear part of the Faraday rotation signal is expressed as probing the carrier spin populations requiring an o -resonant probe frequency. Our computed results conΓΏrm experimental ΓΏndings of electron spin precession and independent electron and hole spin relaxation. Inclusion of the coherent dynamics of the Mn-spin system in our theory shows that optically created carriers can initiate a long-living precession of the Mn-spins, leading to oscillations which are observed through the linear Faraday rotation.

πŸ“œ SIMILAR VOLUMES

Spin–Lattice Relaxation Study in Diluted
Spin–Lattice Relaxation Study in Diluted Magnetic Semiconductor Quantum Wells and Quantum Dots
✍ A.V. Scherbakov; D.R. Yakovlev; A.V. Akimov; W. Ossau; L.W. Molenkamp; T. Wojtow πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 96 KB πŸ‘ 2 views

A review of our recent experiments on the studies of spin-lattice relaxation in diluted magnetic semiconductor quantum wells (undoped (Cd,Mn)Te/(Cd,Mg)Te; n-doped (Cd,Mn)Te/(Cd,Mg)Te and p-doped (Cd,Mn)Te/(Cd,Mg,Zn)Te) and (Cd,Mn)Se/ZnSe quantum dots is given. An optical detection of the nonequilibr

Theory of coherent optical control of ex
Theory of coherent optical control of exciton spin dynamics in a semiconductor dot
✍ Pochung Chen; C. Piermarocchi; L.J. Sham πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 93 KB

We use the spin-polarized excitons in a single quantum dot to design optical controls for basic operations in quantum computing. We examine the ultrafast nonlinear optical processes required and use the coherent nonlinear optical responses to deduce if such processes are physically reasonable. The i