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Diffracted magneto-optical Kerr effect in one-dimensional magnetic gratings
- Authors
- Kim, Jin Bae; Lu, Yue Hui; Cho, Min Hyung; Lee, Geon Joon; Lee, Young Pak; Rhee, Joo Yull; Yoon, Chong Seung
- Issue Date
- Apr-2009
- Publisher
- AIP Publishing
- Keywords
- annealing; cobalt alloys; diffraction gratings; high-speed optical techniques; Kerr magneto-optical effect; laser materials processing; magnetic thin films; photonic crystals
- Citation
- APPLIED PHYSICS LETTERS, v.94, no.15, pp.1 - 3
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 94
- Number
- 15
- Start Page
- 1
- End Page
- 3
- ISSN
- 0003-6951
- Abstract
- 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.
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Related Researcher
- Yoon, Chong Seung
- COLLEGE OF ENGINEERING (SCHOOL OF MATERIALS SCIENCE AND ENGINEERING)