title: Interfacial charge-mediated non-volatile magnetoelectric coupling in Co₀.₃Fe₀.₇/Ba₀.₆Sr₀.₄TiO₃/Nb:SrTiO₃ multiferroic heterostructures.
abstract: The central challenge in realizing non-volatile, E-field manipulation of magnetism lies in finding an energy efficient means to switch between the distinct magnetic states in a stable and reversible manner. In this work, we demonstrate using electrical polarization-induced charge screening to change the ground state of magnetic ordering in order to non-volatilely tune magnetic properties in ultra-thin Co₀.₃Fe₀.₇/Ba₀.₆Sr₀.₄TiO₃/Nb:SrTiO₃ (001) multiferroic heterostructures. A robust, voltage-induced, non-volatile manipulation of out-of-plane magnetic anisotropy up to 40 Oe is demonstrated and confirmed by ferromagnetic resonance measurements. This discovery provides a framework for realizing charge-sensitive order parameter tuning in ultra-thin multiferroic heterostructures, demonstrating great potential for delivering compact, lightweight, reconfigurable, and energy-efficient electronic devices.
authors.affiliation: 1] Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA, 02115 [2] Energy Systems Division, Argonne National Laboratory, Lemont, IL, USA, 60439.
authors.forename: Ziyao
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, USA 45433-7707.
authors.forename: Brandon M
authors.initials: BM
authors.lastname: Howe
authors.affiliation: Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, USA 45433-7707.
authors.forename: Ming
authors.initials: M
authors.lastname: Liu
authors.affiliation: Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA, 02115.
authors.forename: Tianxiang
authors.initials: T
authors.lastname: Nan
authors.affiliation: Energy Systems Division, Argonne National Laboratory, Lemont, IL, USA, 60439.
authors.forename: Xing
authors.initials: X
authors.lastname: Chen
authors.affiliation: Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, USA 45433-7707.
authors.forename: Krishnamurthy
authors.initials: K
authors.lastname: Mahalingam
authors.affiliation: Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA, 02115.
authors.forename: Nian X
authors.initials: NX
authors.lastname: Sun
authors.affiliation: Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, USA 45433-7707.
authors.forename: Gail J
authors.initials: GJ
authors.lastname: Brown