title: Electric-Field Control of Magnetism in Co40Fe40B20/(1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 Multiferroic Heterostructures with Different Ferroelectric Phases.
abstract: Electric-field control of magnetism in multiferroic heterostructures composed of Co40Fe40B20 (CoFeB) and (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) with different ferroelectric phases via changing composition and temperature is explored. It is demonstrated that the nonvolatile looplike bipolar-electric-field-controlled magnetization, previously found in the CoFeB/PMN-xPT heterostructures with PMN-xPT in the rhombohedral (R) phase around the morphotropic phase boundary (MPB), also occurs for PMN-xPTs with both R phase (far away from MPB) and monoclinic (M) phase, suggesting that the phenomenon is the common feature of CoFeB/PMN-xPT multiferroic heterostructures for PMN-xPT with different phases. The magnitude of the effect changes with increasing temperature and volatile bipolar-electric-field-controlled magnetization with a butterflylike behavior occurs when the ferroelectric phase changes to the tetragonal phase (T). Moreover, for the R-phase sample with x = 0.18, an abrupt and giant increase of magnetization is observed at a characteristic temperature in the temperature dependence of magnetization curve. These results are discussed in terms of coupling between magnetism and ferroelectric domains including macro- and microdomains for different ferroelectric phases. This work is helpful for understanding the phenomena of electric-field control of magnetism in FM/FE multiferroic heterostructures and is also important for applications.
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: 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: College of Mechatronics and Automation, National University of Defense Technology , Changsha 410073, China.
authors.forename: Peisen
authors.initials: P
authors.lastname: Li
authors.affiliation: College of Science, National University of Defense Technology , Changsha 410073, China.
authors.forename: Sen
authors.initials: S
authors.lastname: Zhang
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: Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
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.initials: A
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Surface Physics and Department of Physics, Fudan University , Shanghai 200433, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Xu
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: X F
authors.initials: XF
authors.lastname: Han
authors.affiliation: State Key Laboratory of Surface Physics and Department of Physics, Fudan University , Shanghai 200433, China.
authors.forename: Shiyan
authors.initials: S
authors.lastname: Li
authors.affiliation: Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 201800, China.
authors.forename: Di
authors.initials: D
authors.lastname: Lin
authors.affiliation: Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 201800, China.
authors.forename: Haosu
authors.initials: H
authors.lastname: Luo
keywords: electric-field-controlled-magnetization; multiferroic; nonvolatile; phase; temperature