Department of Physics and Chemistry
Spin Phenomena for Information Nano-devices(SPIN) Lab
1. Journal Articles
Relaxation effects of magnetization modulus and precession axis on damping time of precession in L1(0)-ordered FePt alloy film
- Title
- Relaxation effects of magnetization modulus and precession axis on damping time of precession in L1(0)-ordered FePt alloy film
- Author(s)
- Kim, Ji-Wan ; Song, Hyon-Seok ; You, Chun-Yeol ; Shin, Sung-Chul
- Issued Date
- 2017-07
- Citation
- Current Applied Physics, v.17, no.7, pp.1009 - 1013
- Type
- Article
- Author Keywords
- Time-resolved MOKE ; Time-dependent magnetization modulus ; Timedependent precession axis ; L10-ordered FePt
- Keywords
- TEMPERATURE ; DYNAMICS ; REVERSAL ; NICKEL
- ISSN
- 1567-1739
- Abstract
- We investigate the relaxation effects of magnetization modulus and precession axis on the damping time of the precession in L10-ordered FePt alloy film using a time-resolved magneto-optical Kerr effect. It is revealed that their fast relaxation processes during the precession bring about the overestimation of the damping time of the precession. We found that this error becomes more significant as the pump intensity increases. We propose that these corrections need to be considered for materials with the fast relaxation dynamics during the precession. © 2017 Elsevier B.V.
- Publisher
- 한국물리학회
- Related Researcher
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You, Chun-Yeol
- Research Interests Spintronics; Condensed Matter Physics; Magnetic Materials & Thin Films; Micromagnetic Simulations; Spin Nano-Devices
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