title: Spatially Resolved Ferroelectric Domain-Switching-Controlled Magnetism in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3Multiferroic Heterostructure.
abstract: Intrinsic spatial inhomogeneity or phase separation in cuprates, manganites, etc., related to electronic and/or magnetic properties, has attracted much attention due to its significance in fundamental physics and applications. Here we use scanning Kerr microscopy and scanning electron microscopy with polarization analysis with in situ electric fields to reveal the existence of intrinsic spatial inhomogeneity of the magnetic response to an electric field on a mesoscale with the coexistence of looplike (nonvolatile) and butterfly-like (volatile) behaviors in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3ferromagnetic/ferroelectric (FM/FE) multiferroic heterostructures. Both the experimental results and micromagnetic simulations suggest that these two behaviors come from the 109° and the 71°/180° FE domain switching, respectively, which have a spatial distribution. This FE domain-switching-controlled magnetism is significant for understanding the nature of FM/FE coupling on the mesoscale and provides a path for designing magnetoelectric devices through domain engineering.
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter, Beijing 100084, China.|College of Mechatronics and Automation, National University of Defense Technology , Changsha 410073, China.
authors.forename: Peisen
authors.initials: P
authors.lastname: Li
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter, Beijing 100084, China.
authors.forename: Yonggang
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter, Beijing 100084, China.
authors.forename: Sen
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter, Beijing 100084, China.
authors.forename: Aitian
authors.identifier: http://orcid.org/0000-0003-3535-9470
authors.initials: A
authors.lastname: Chen
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Dalai
authors.initials: D
authors.lastname: Li
authors.affiliation: School of Materials Science and Engineering and State Key Lab of New Ceramics and Fine Processing, Tsinghua University , Beijing 100084, China.
authors.forename: Jing
authors.identifier: http://orcid.org/0000-0003-0103-9858
authors.initials: J
authors.lastname: Ma
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter, Beijing 100084, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Center for Nanoscale Science and Technology, National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States.
authors.forename: Daniel T
authors.initials: DT
authors.lastname: Pierce
authors.affiliation: Center for Nanoscale Science and Technology, National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States.
authors.forename: John
authors.initials: J
authors.lastname: Unguris
authors.affiliation: School of Materials Science and Engineering and Key Laboratory of Advanced Materials (MOE), Tsinghua University , Beijing 100084, China.
authors.forename: Hong-Guang
authors.initials: HG
authors.lastname: Piao
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.
authors.forename: Huiyun
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China.
authors.forename: Meihong
authors.initials: M
authors.lastname: Zhu
authors.affiliation: School of Materials Science and Engineering and Key Laboratory of Advanced Materials (MOE), Tsinghua University , Beijing 100084, China.
authors.forename: Xiaozhong
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Xiufeng
authors.initials: X
authors.lastname: Han
authors.affiliation: College of Mechatronics and Automation, National University of Defense Technology , Changsha 410073, China.
authors.forename: Mengchun
authors.initials: M
authors.lastname: Pan
authors.affiliation: School of Materials Science and Engineering and State Key Lab of New Ceramics and Fine Processing, Tsinghua University , Beijing 100084, China.
authors.forename: Ce-Wen
authors.initials: CW
authors.lastname: Nan
keywords: SEMPA; electric field control of magnetism; ferroelectric domain switching; scanning Kerr microscopy; spatially resolved