Magneto-optical Kerr effect investigation on magnetoelectric coupling in ferromagnetic/antiferroelectric multilayer thin film structures

Meysam Sharifzadeh Mirshekarloo, Nikolai Yakovlev, Meng Fei Wong, Kui Yao, Thirumany Sritharan, Charanjit Singh Bhatia

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Abstract

Magnetoelectric (ME) membranes comprising soft ferromagnetic Ni and antiferroelectric (AFE) (Pb,La)(Zr,Sn,Ti)O 3 (PLZST) layers were proposed and fabricated through a bulk micro-machining process on silicon wafers. An AC-mode magneto-optical Kerr effect technique was proposed to examine the magnetoelectric coupling in the multilayer membranes, in which the electric field-induced magnetization rotation was analyzed for understanding the underlying coupling mechanisms. The AFE to ferroelectric phase transformation of PLZST induced a rotation of magnetization of about 0.5° in Ni, persuaded by strain-induced anisotropy of about -0.5 kJ/m 3.

Original languageEnglish
Article number172905
JournalApplied Physics Letters
Volume101
Issue number17
DOIs
Publication statusPublished - 22 Oct 2012
Externally publishedYes

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