Heterogeneous Integration of Freestanding Bilayer Oxide Membrane for Multiferroicity
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT); Kyungpook National University, Daegu (Korea, Republic of)
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT); State University of New York (SUNY), Buffalo, NY (United States)
- Department of Physics Pusan National University Busan 46241 South Korea; Pusan National University, Busan (Korea, Republic of)
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Pusan National University, Busan (Korea, Republic of); Ulsan National Institute of Science and Technology (UNIST), Ulsan (Korea, Republic of)
- Ulsan National Institute of Science and Technology (UNIST), Ulsan (Korea, Republic of)
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT); Korea Research Institue of Standards and Science, Daejeon (Korea, Republic of)
- Pusan National Univ., Busan (Korea, Republic of)
- State University of New York (SUNY), Buffalo, NY (United States)
Transition metal oxides exhibit a plethora of electrical and magnetic properties described by their order parameters. In particular, ferroic orderings offer access to a rich spectrum of fundamental physics phenomena, in addition to a range of technological applications. The heterogeneous integration of ferroelectric and ferromagnetic materials is a fruitful way to design multiferroic oxides. The realization of freestanding heterogeneous membranes of multiferroic oxides is highly desirable. In this study, epitaxial BaTiO3/La0.7Sr0.3MnO3 freestanding bilayer membranes are fabricated using pulsed laser epitaxy. The membrane displays ferroelectricity and ferromagnetism above room temperature accompanying the finite magnetoelectric coupling constant. Further, this study reveals that a freestanding heterostructure can be used to manipulate the structural and emergent properties of the membrane. In the absence of the strain caused by the substrate, the change in orbital occupancy of the magnetic layer leads to the reorientation of the magnetic easy-axis, that is, perpendicular magnetic anisotropy. These results of designing multiferroic oxide membranes open new avenues to integrate such flexible membranes for electronic applications.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC); National Science Foundation (NSF); National Research Foundation of Korea (NRF)
- Grant/Contract Number:
- AC05-00OR22725; 89233218CNA000001
- OSTI ID:
- 1968681
- Alternate ID(s):
- OSTI ID: 1972125
- Journal Information:
- Advanced Science, Journal Name: Advanced Science Journal Issue: 15 Vol. 10; ISSN 2198-3844
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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