journal article·2023-11-28

Electric Field Control of Magnetization Reversal and Multiple Magnetic States in a Doubly Exchange-Biased Co/IrMn Bilayer

Lujun Wei, Pai Liu, Jincheng Peng, Zheng Zhou, Feng Li, Fei Huang, Yanghui Li, Xiaodan Chi, Yan Xing, Ruobai Liu, Jiarui Chen, Jiaju Yang, Wei Zhang, Qingyu Xu, Jun Du, Yong Pu

ACS Applied Electronic Materials· Volume 5· Issue 11
Publisher page

Abstract

Electric field (E-field) control of magnetism, especially for magnetization reversal, is essential for the design of energy-efficient spintronic devices. Here, a simple way of E-field control of magnetization reversal is proposed and accomplished on a doubly exchange-biased Co/IrMn bilayer with two collinear but opposite pinning directions. The sample was grown on a ferroelectric (FE) single crystalline (011)-oriented [Pb(Mg 1/3 Nb 2/3 )O 3 ] 0.68 -[PbTiO 3 ] 0.32 (PMN–PT) substrate, which has anisotropic and significant remanent strain. During film deposition, a specially designed magnetic field is produced by two identical “North” poles facing each other along the [01–1] axis, on which the PMN–PT demonstrates tensile strain. Moreover, E-field control of multiple magnetic states could also be realized in this unique doubly exchange-biased system. This work will provide a valuable reference for manufacturing low-energy magnetic storage memory devices
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Research context

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Science, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, P. R. China

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, P. R. China

CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, P. R. China

Department of Basic, Dalian Naval Academy, Dalian 116018, P. R. China

School of Physics, Southeast University, Nanjing 211189, P. R. China

Funding

National Key Research and Development Program of China · Jiangsu Planned Projects for Postdoctoral Research Funds · Natural Science Foundation of Jiangsu Province · China Postdoctoral Science Foundation · Government of Jiangsu Province · Nanjing University of Posts and Telecommunications · National Natural Science Foundation of China · Jiangsu Specially-Appointed Professor program · Oversea Researcher Innovation Program of Nanjing · Science and Technology on Advanced Functional Composite Laboratory · Laboratory of Solid-state Microstructures of Nanjing University

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