Laser-Induced Precession of Magnetization in GaMnAs

2008/03/03 by E. Rozkotová, E. Rozkotova, P. Nemec +14 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Diamond and Carbon-based Materials Research #Magnetic properties of thin films #Magneto-Optical Properties and Applications #cond-mat.mtrl-sci

paper · pdf · doi:10.1109/tmag.2008.2003061

published as IEEE Transactions on Magnetics 44, 2674-2677 (2008). · 4 pages, 5 figures

arxiv created 2008/03/03 · openalex publication_date 2008/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report on the photo-induced precession of the ferromagnetically coupled Mn spins in (Ga,Mn)As, which is observed even with no external magnetic field applied. We concentrate on various experimental aspects of the time-resolved magneto-optical Kerr effect (TR-MOKE) technique that can be used to clarify the origin of the detected signals. We show that the measured data typically consist of several different contributions, among which only the oscillatory signal is directly connected with the ferromagnetic order in the sample.

Citations

• Coherent magnetization precession in GaMnAs induced by ultrafast optical excitation

Cited by

• Coherent control of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As

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