Room temperature ferromagnetic resonance in hetero-epitaxial BTO-BFO/LSMO magnetoelectric composite

Date
2018-10-30Author
Madon, Benjamin
Kang, Han Byul
Kang, Min-Gyu
Maurya, Deepam
Magill, Brenden A.
Alves, Marcos J.P.
Wegrowe, Jean-Eric
Drouhin, Henri-Jean
Priya, Shashank
Khodaparast, Giti A.
Metadata
Show full item recordAbstract
We synthesized epitaxial BTO-BFO heterostructure with decreased leakage and simultaneously improved the multiferroic properties. This study provides new direction for ferromagnetic resonance studies, in high quality BTO-BFO films grown on LSMO. We observed small Gilbert damping (=0.004) and the absence of large inhomogeneous broadening, in a film with 80 nm thickness of BTO-BFO on LSMO (110). This fact offers opportunities for employing this material system for spin transfer in multifunctional materials where controlling magnetization by a flow of spin angular momentum, or spin current, is crucial toward developing nanoscale spin-based memory and devices. Magnetic insulators, such as BTO-BFO on LSMO, are potentially excellent candidates for pure spin current without the existence of charge current.