2005/08/07 by J. Chovan, E. G. Kavousanaki, Eleftheria Kavousanaki +1 · 1 citation
Engineering · Physics and Astronomy · #Magnetic properties of thin films #Magneto-Optical Properties and Applications #Semiconductor Quantum Structures and Devices #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.96.057402
published as Phys. Rev. Lett. 96, 057402 (2006) · 4 pages, 2 figures
arxiv created 2005/08/07 · openalex publication_date 2006/02/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We develop a theory of ultrafast light-induced magnetization dynamics in ferromagnetic semiconductors. We demonstrate magnetization control during femtosecond time scales via the interplay between nonlinear circularly polarized optical excitation, hole-spin damping, polarization dephasing, and Mn-hole-spin interactions. Our results show magnetization relaxation and precession for the duration of the optical pulse governed by the nonlinear optical polarizations and populations.