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

Benjamin Madon, Han Byul Kang, Min Gyu Kang, Deepam Maurya, Brenden A. Magill, Marcos J.P. Alves, Jean Eric Wegrowe, Henri Jean Drouhin, Shashank Priya, Giti A. Khodaparast

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Abstract

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 (α=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.

Original languageEnglish (US)
Article number105034
JournalAIP Advances
Volume8
Issue number10
DOIs
StatePublished - Oct 1 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Madon, B., Kang, H. B., Kang, M. G., Maurya, D., Magill, B. A., Alves, M. J. P., Wegrowe, J. E., Drouhin, H. J., Priya, S., & Khodaparast, G. A. (2018). Room temperature ferromagnetic resonance in hetero-epitaxial BTO - BFO / LSMO magnetoelectric composite. AIP Advances, 8(10), [105034]. https://doi.org/10.1063/1.5037165