Magnetic spin structure and magnetoelectric coupling in BiFeO{sub 3}-BaTiO{sub 3} multilayer

Journal Article · Mon Feb 23 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4913444· OSTI ID:22412711

Lazenka, Vera; Modarresi, Hiwa; Bisht, Manisha; Vantomme, André; Temst, Kristiaan ^[1]; Lorenz, Michael; Bonholzer, Michael; Grundmann, Marius ^[2]; Rüffer, Rudolf ^[3]; Van Bael, Margriet J. ^[4]

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1. KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, 3001 Leuven (Belgium)
2. Institut für Experimentelle Physik II, Universität Leipzig, Linnéstraße 5, D-04103 Leipzig (Germany)
3. European Synchrotron Radiation Facility, CS 40220, 38043 Grenoble Cédex 9 (France)
4. Laboratorium voor Vaste-Stoffysica en Magnetisme, KU Leuven, Celestijnenlaan 200 D, 3001 Leuven (Belgium)

Magnetic spin structures in epitaxial BiFeO{sub 3} single layer and an epitaxial BaTiO{sub 3}/BiFeO{sub 3} multilayer thin film have been studied by means of nuclear resonant scattering of synchrotron radiation. We demonstrate a spin reorientation in the 15 × [BaTiO{sub 3}/BiFeO{sub 3}] multilayer compared to the single BiFeO{sub 3} thin film. Whereas in the BiFeO{sub 3} film, the net magnetic moment m{sup →} lies in the (1–10) plane, identical to the bulk, m{sup →} in the multilayer points to different polar and azimuthal directions. This spin reorientation indicates that strain and interfaces play a significant role in tuning the magnetic spin order. Furthermore, large difference in the magnetic field dependence of the magnetoelectric coefficient observed between the BiFeO{sub 3} single layer and multilayer can be associated with this magnetic spin reorientation.

• OSTI ID: 22412711
• Journal Information: Applied Physics Letters, Vol. 106, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
COMPARATIVE EVALUATIONS
COUPLING
ELECTRICAL PROPERTIES
EPITAXY
INTERFACES
LAYERS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
RESONANCE SCATTERING
SPIN
STRAINS
SYNCHROTRON RADIATION
THIN FILMS
TITANATES