Noise studies of magnetization dynamics in dilute magnetic semiconductor heterostructures

Nonlocal magnetization dynamics in ferromagnetic heterostructures

Yaroslav Tserkovnyak, Arne Brataas, Gerrit E. W. Bauer, and Bertrand I. Halperin Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138, USA Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway Kavli Institute of NanoScience, Delft University of Technology, 2628 CJ Delft, The Netherlands Lyman Laboratory of Physics, Harvard Uni...

Time-resolved luminescence of semiconductor heterostructures in high magnetic fields

We report on time-resolved luminescence in GaAs quantum wells in high magnetic fields up to 21 T. Results on resonant tunneling and exciton relaxation including spin flip are presented.

Magneto-optical studies of dilute nitrides and II-VI diluted magnetic semiconductor quantum structures

Subpicosecond coherent carrier-phonon dynamics in semiconductor heterostructures.

Coherent longitudinal-optical phonons are generated in semiconductor heterostructures. The coupling of the coherent, longitudinal-optic ~LO! phonons to collective carrier excitations oscillating parallel to the growth direction of GaAs/Al0.36Ga0.64As quantum wells is investigated with femtosecond time-resolution. This coupling is found to be weak for small well widths and evolves towards the bu...

Dilute Magnetic Semiconductor: A Review of Theoretical Status

Dilute Magnetic semiconductors has been attracting researchers due to their wide range of applications like spintronics devices such as spin-FET, spin-LED, nanoscale integrated magnetic memories & sensors etc. But most of practical applications requires curie temperature for DMS to be around room temperature or more. Hence different studies had been done world-wide for controlling the electrica...