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
Affiliations
Benjamin Madon
Laboratoire des Solides Irradiés, CNRS UMR 7642, CEA-DSM-IRAMIS, École Polytechnique, Université Paris-Saclay, 91128 Palaiseau cedex, France
Han Byul Kang
Center for Energy Harvesting Materials and Systems (CEHMS), Bio-Inspired Materials and Devices Laboratory (BMDL), Virginia Tech, Blacksburg, Virginia 24061, USA
Min Gyu Kang
Center for Energy Harvesting Materials and Systems (CEHMS), Bio-Inspired Materials and Devices Laboratory (BMDL), Virginia Tech, Blacksburg, Virginia 24061, USA
Deepam Maurya
Center for Energy Harvesting Materials and Systems (CEHMS), Bio-Inspired Materials and Devices Laboratory (BMDL), Virginia Tech, Blacksburg, Virginia 24061, USA
Brenden A. Magill
Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
Marcos J. P. Alves
Laboratoire des Solides Irradiés, CNRS UMR 7642, CEA-DSM-IRAMIS, École Polytechnique, Université Paris-Saclay, 91128 Palaiseau cedex, France
Jean-Eric Wegrowe
Laboratoire des Solides Irradiés, CNRS UMR 7642, CEA-DSM-IRAMIS, École Polytechnique, Université Paris-Saclay, 91128 Palaiseau cedex, France
Henri-Jean Drouhin
Laboratoire des Solides Irradiés, CNRS UMR 7642, CEA-DSM-IRAMIS, École Polytechnique, Université Paris-Saclay, 91128 Palaiseau cedex, France
Shashank Priya
Center for Energy Harvesting Materials and Systems (CEHMS), Bio-Inspired Materials and Devices Laboratory (BMDL), Virginia Tech, Blacksburg, Virginia 24061, USA
Giti A. Khodaparast
Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
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.
