Electric-field control of magnetic property in perpendicularly magnetized Co0.25Pd0.75/PMN-PT heterostructure

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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 K-eff is efficiently tuned via the electric field up to 2 MV/m from 2.5 x 10(4) to 0.8 x 10(4) J/m(3), which leads to the change of the effective magnetic anisotropy field mu(0)Delta H-eff = -45 mT. With a time-resolved magneto-optical Kerr effect, we observed the precession frequency change Delta f = 0.8 GHz. Our simulation estimates that this value corresponds to Df = -3 GHz and Delta f/f = -0.23 in a scheme of ferromagnetic resonance measurement. (C) 2017 Published by Elsevier B.V.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2017-07
Language
English
Article Type
Article
Keywords

COPD ALLOY-FILMS; EARTH IRON-ALLOYS; FERROMAGNETIC-RESONANCE; PIEZOELECTRIC CERAMICS; TB-FE; ANISOTROPY; MAGNETOSTRICTION; NICKEL; MULTILAYERS; DEPENDENCE

Citation

CURRENT APPLIED PHYSICS, v.17, no.7, pp.940 - 944

ISSN
1567-1739
DOI
10.1016/j.cap.2017.03.006
URI
http://hdl.handle.net/10203/224032
Appears in Collection
RIMS Journal Papers
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