Diffracted magneto-optical Kerr effect in one-dimensional magnetic gratings

  • Kim, Jin Bae
  • Lu, Yue Hui
  • Cho, Min Hyung
  • Lee, Geon Joon
  • Lee, Young Pak
  • ... Yoon, Chong Seung
  • 외 1명
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초록

One-dimensional Co2MnSi magnetic gratings were fabricated with a significant ease by using the interference pattern of two femtosecond-laser beams which resulted in a selective-area annealing of the as-deposited Co2MnSi film. The longitudinal Kerr rotation of the negative first-order diffracted beam was nearly 30 times larger than that of the zeroth-order one in a sample fabricated with the optimal conditions. The enhancement strongly depends on the grating depth, which varies with the number of laser shots, confirming the theoretical result that the magneto-optical Kerr-effect enhancement is reduced as the grating depth increases.

키워드

annealingcobalt alloysdiffraction gratingshigh-speed optical techniquesKerr magneto-optical effectlaser materials processingmagnetic thin filmsphotonic crystalsKerr magnetooptical effectMagnetic field effectsMagnetosManganese compoundsOptical Kerr effectDiffracted beamsFemtosecondFirst ordersGrating depthsInterference patternsKerr rotationsLaser shotsMagnetic gratingsMagneto-opticalMagneto-optical kerr effectsMnSi filmsOne-dimensionalOptimal conditionsTheoretical results
제목
Diffracted magneto-optical Kerr effect in one-dimensional magnetic gratings
저자
Kim, Jin BaeLu, Yue HuiCho, Min HyungLee, Geon JoonLee, Young PakRhee, Joo YullYoon, Chong Seung
DOI
10.1063/1.3120268
발행일
2009-04
유형
Article
저널명
Applied Physics Letters
94
15
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1 ~ 3