Reversible Control of Interfacial Magnetism through Ionic-Liquid-Assisted Polarization Switching | Zendy

Andreas Herklotz | Zendy; ErJia Guo | Zendy; Anthony T. Wong | Zendy; Tricia L. Meyer | Zendy; Sheng Dai | Zendy; Thomas Z. Ward | Zendy; Ho Nyung Lee | Zendy; M. R. Fitzsimmons | Zendy

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Reversible Control of Interfacial Magnetism through Ionic-Liquid-Assisted Polarization Switching

Author(s) -

Andreas Herklotz,

ErJia Guo,

Anthony T. Wong,

Tricia L. Meyer,

Sheng Dai,

Thomas Z. Ward,

Ho Nyung Lee,

M. R. Fitzsimmons

Publication year - 2017

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/acs.nanolett.6b04949

Subject(s) - magnetism , ferroelectricity , neutron reflectometry , multiferroics , materials science , polarization (electrochemistry) , ionic liquid , magnetization , ferromagnetism , ionic bonding , condensed matter physics , reflectometry , polarization density , heterojunction , optoelectronics , neutron , magnetic field , dielectric , chemistry , physics , neutron scattering , ion , computer science , time domain , biochemistry , quantum mechanics , computer vision , catalysis , organic chemistry , small angle neutron scattering

The ability to control magnetism of materials via electric field enables a myriad of technological innovations in information storage, sensing, and computing. We use ionic-liquid-assisted ferroelectric switching to demonstrate reversible modulation of interfacial magnetism in a multiferroic heterostructure composed of ferromagnetic (FM) La 0.8 Sr 0.2 MnO 3 and ferroelectric (FE) PbZr 0.2 Ti 0.8 O 3 . It is shown that ionic liquids can be used to persistently and reversibly switch a large area of a FE film. This is a prerequisite for polarized neutron reflectometry (PNR) studies that are conducted to directly probe magnetoelectric coupling of the FE polarization to the interfacial magnetization.

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