journal article·2018-05-01Open access

Enhanced magnetoelectric coupling in a composite multiferroic system via interposing a thin film polymer

Zhuyun Xiao, Kotekar P. Mohanchandra, Roberto Lo Conte, C. Ty Karaba, J. D. Schneider, Andres Chavez, Sidhant Tiwari, Hyunmin Sohn, Mark E. Nowakowski, Andreas Scholl, Sarah H. Tolbert, Jeffrey Bokor, Gregory P. Carman, Rob N. Candler

AIP Advances· Volume 8· Issue 5

Abstract

Enhancing the magnetoelectric coupling in a strain-mediated multiferroic composite structure plays a vital role in controlling magnetism by electric fields. An enhancement of magnetoelastic coupling between ferroelectric single crystal (011)-cut [Pb(Mg1/3Nb2/3)O3](1-x)-[PbTiO3]x (PMN-PT, x≈ 0.30) and ferromagnetic polycrystalline Ni thin film through an interposed benzocyclobutene polymer thin film is reported. A nearly twofold increase in sensitivity of remanent magnetization in the Ni thin film to an applied electric field is observed. This observation suggests a viable method of improving the magnetoelectric response in these composite multiferroic systems.
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Research context

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Advanced Condensed Matter Physics

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Affiliations

Department of Electrical and Computer Engineering, University of California 1 , Los Angeles, California 90095, USA

Department of Mechanical and Aerospace Engineering, University of California 2 , Los Angeles, California 90095, USA

Department of Electrical Engineering and Computer Sciences, University of California 3 , Berkeley, California 94720, USA

Department of Chemistry and Biochemistry, University of California 4 , Los Angeles, California 90095, USA

Advanced Light Source, Lawrence Berkeley National Lab 5 , Berkeley, California 94720, USA

California NanoSystems Institute 6 , Los Angeles, California 90095, USA

Funding

NSF Nanosystems Engineering Research Center for TANMS

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