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Author Savitha Pillai, S. ♦ Kojima, H. ♦ Itoh, M. ♦ Taniyama, T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ELECTRIC FIELDS ♦ ELECTRONIC STRUCTURE ♦ FERROELECTRIC MATERIALS ♦ MAGNETORESISTANCE ♦ MONOCRYSTALS ♦ ORTHORHOMBIC LATTICES ♦ POLARIZATION ♦ SPIN ♦ SPIN ORIENTATION ♦ STRAINS ♦ TITANATES ♦ TRIGONAL LATTICES ♦ VARIATIONS ♦ WIRES
Abstract We report lateral electric-field-driven sizable changes in the magnetoresistance of Co/Cu/Fe tri-layered wires on BaTiO{sub 3} single crystal. While the observed change is marginal in the tetragonal phase of BaTiO{sub 3}, it reaches over 40% in the orthorhombic and rhombohedral phases with an electric field of 66 kV/cm. We attribute it to possible electric-field-induced variations of the spin-dependent electronic structures, i.e., spin polarization, of the Fe via interfacial strain transfer from BaTiO{sub 3}. The contrasting results for the different phases of BaTiO{sub 3} are discussed, associated with the distinct aspects of the ferroelectric polarization switching processes in each phase.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-08-17
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 7


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