Ultrafast Coherent Control of Spin Precession Motion by Terahertz Magnetic Pulses

• Authors: M. Nakajima , K. Yamaguchi , T. Suemoto
• Languages of publication: EN

Abstracts

EN

We demonstrated coherent control of spin precession motion due to the ferromagnetic resonance induced by magnetic field component of ultrashort terahertz pulses. The amplitude of the precession can be controlled by the pulse separation time of the double pulse excitation technique. We succeeded in observing the energy transfer between spin and photon systems, and the energy of the spin system is returned to the second terahertz pulses instantaneously when the precession amplitude is cancelled.

Keywords

EN

75.78.Jp; 42.50.Md; 76.50.+g; 78.20.Ls

Discipline

• 78.20.Ls: Magneto-optical effects(for magneto-optical devices, see 85.70.Sq)
• 42.50.Md: Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency
• 76.50.+g: Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance(see also 75.30.Ds Spin waves)
• 75.78.Jp: Ultrafast magnetization dynamics and switching(for switching phenomena in ferroelectrics, see 77.80.Fm; for ultrafast spectroscopy, see 78.47.J-; for ultrafast processes in optics, see 42.65.Re)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 2
• Pages: 343-346

Dates

published

2012-02

Contributors

author

M. Nakajima

• Institute for Solid State Physics, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwashi, Chiba, 277-8581, Japan

author

K. Yamaguchi

• Institute for Solid State Physics, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwashi, Chiba, 277-8581, Japan

author

T. Suemoto

• Institute for Solid State Physics, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwashi, Chiba, 277-8581, Japan

References

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Identifiers

DOI

10.12693/APhysPolA.121.343