Coherent control of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As
arXiv:0808.3738 · doi:10.1063/1.3046718
Abstract
We report single-color, time resolved magneto-optical measurements in ferromagnetic semiconductor (Ga,Mn)As. We demonstrate coherent optical control of the magnetization precession by applying two successive ultrashort laser pulses. The magnetic field and temperature dependent experiments reveal the collective Mn-moment nature of the oscillatory part of the time-dependent Kerr rotation, as well as contributions to the magneto-optical signal that are not connected with the magnetization dynamics.
6 pages, 3 figures, accepted in Applied Physics Letters
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- Spin-dependent phenomena and device concepts explored in (Ga,Mn)As
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- Optical determination of the Neel vector in a CuMnAs thin-film antiferromagnet
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- Femtosecond Coherent Control of Spin with Light in (Ga,Mn)As ferromagnets
- Direct measurement of the three dimensional magnetization vector trajectory in GaMnAs by a magneto-optical pump-and-probe method
- Ultrafast Probes of Nonequilibrium Hole Spin Relaxation in Ferromagnetic Semiconductor GaMnAs
- Broadband ferromagnetic resonance characterization of GaMnAs thin films
- Comparison of micromagnetic parameters of ferromagnetic semiconductors (Ga,Mn)(As,P) and (Ga,Mn)As
- Collective magnetization dynamics in ferromagnetic (Ga,Mn)As mediated by photo-excited carriers
- Quasi-nondegenerate pump-probe magnetooptical experiment in GaAs/AlGaAs heterostructure based on spectral filtration
- Fast optical control of spin in semiconductor interfacial structures
- Investigation of Optical Spin Transfer Torque in Ferromagnetic Semiconductor GaMnAs by Magneto-Optical Pump-and-Probe Method