Electric-field control of magnetic property in perpendicularly magnetized Co0.25Pd0.75/PMN-PT heterostructure
- Title
- Electric-field control of magnetic property in perpendicularly magnetized Co0.25Pd0.75/PMN-PT heterostructure
- Author(s)
- Kim, Ji-Wan ; Kim, Ju-Hyun ; You, Chun-Yeol ; Shin, Sung-Chul
- DGIST Authors
- Kim, Ji-Wan ; Kim, Ju-Hyun ; You, Chun-Yeol ; Shin, Sung-Chul
- Issued Date
- 2017-07
- Type
- Article
- Article Type
- Article
- Author Keywords
- Magnetostrictive material ; Ferromagnetic/piezoelectric heterostructure ; Time-resolved magneto-optical Kerr effect
- Keywords
- COPD ALLOY-FILMS ; EARTH IRON-ALLOYS ; FERROMAGNETIC-RESONANCE ; PIEZOELECTRIC CERAMICS ; TB-FE ; ANISOTROPY ; MAGNETOSTRICTION ; NICKEL ; MULTILAYERS ; DEPENDENCE
- ISSN
- 1567-1739
- Abstract
- We report about the electric-field control of magnetic properties in a perpendicularly magnetized Co0.25Pd0.75 film deposited on PMN-PT (lead magnesium niobate-lead titanate) substrate. The effective perpendicular anisotropy coefficient Keff is efficiently tuned via the electric field up to 2 MV/m from 2.5 × 104 to 0.8 × 104 J/m3, which leads to the change of the effective magnetic anisotropy field μ0ΔHeff = −45 mT. With a time-resolved magneto-optical Kerr effect, we observed the precession frequency change Δf = 0.8 GHz. Our simulation estimates that this value corresponds to Δf = −3 GHz and Δf/f = −0.23 in a scheme of ferromagnetic resonance measurement. © 2017
- Publisher
- 한국물리학회
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- Appears in Collections:
- ETC 1. Journal Articles
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