Light-Induced Precession of Magnetization in Ferromagnetic Semiconductor (Ga,Mn)As

• Authors: N. Tesařová , P. Němec , E. Rozkotová , F. Trojánek , P. Malý
• Languages of publication: EN

Abstracts

EN

Precession of magnetization induced by laser pulses in (Ga,Mn)As was studied by the pump-and-probe technique. We concentrated on various experimental aspects that can be used to identify a part of the measured magneto-optical signals that provides information about the dynamics of magnetization. We also revealed that that it takes about 80 ps before the quasi-equilibrium precession of magnetization is initiated by the impact of laser pulse.

Keywords

EN

75.50.Pp; 75.78.-n; 78.47.J-; 78.47.D-

Discipline

• 78.47.J-: Ultrafast spectroscopy (<1>(see also 42.65.Re Ultrafast processes; optical pulse generation and pulse compression; 82.53.Mj Femtosecond probing of semiconductor nanostructures)
• 78.47.D-: Time resolved spectroscopy (>1 psec)
• 75.78.-n: Magnetization dynamics
• 75.50.Pp: Magnetic semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 1065-1066

Dates

published

2010-11

Contributors

author

N. Tesařová

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 06 Prague, Czech Republic

author

P. Němec

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 06 Prague, Czech Republic

author

E. Rozkotová

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 06 Prague, Czech Republic

author

F. Trojánek

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 06 Prague, Czech Republic

author

P. Malý

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 06 Prague, Czech Republic

References

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Identifiers

DOI

10.12693/APhysPolA.118.1065