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

被引：4
|
作者：
Kim, Ji-Wan [1 ]
Kim, Ju-Hyun [2 ,3 ]
You, Chun-Yeol
Shin, Sung-Chul [2 ,3 ,4 ]
机构：
[1] Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, France
[2] Korea Adv Inst Sci & Technol, Dept Phys, Daejeon 305701, South Korea
[3] Korea Adv Inst Sci & Technol, Ctr Nanospin Spintron Mat, Daejeon 305701, South Korea
[4] DGIST, Dept Emerging Mat Sci, Daegu 42988, South Korea
来源：
CURRENT APPLIED PHYSICS | 2017年 / 17卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
Magnetostrictive material; Ferromagnetic/piezoelectric heterostructure; Time-resolved magneto-optical Kerr effect; COPD ALLOY-FILMS; EARTH IRON-ALLOYS; FERROMAGNETIC-RESONANCE; PIEZOELECTRIC CERAMICS; TB-FE; ANISOTROPY; MAGNETOSTRICTION; NICKEL; MULTILAYERS; DEPENDENCE;
D O I：
10.1016/j.cap.2017.03.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：940 / 944
页数：5
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