Nonvolatile Electric Field Control of Thermal Magnons in the Absence of an Applied Magnetic Field

Abstract

Spin transport through magnetic insulators has been demonstrated in a variety of materials and is an emerging pathway for next-generation spin-based computing. To modulate spin transport in these systems, one typically applies a sufficiently strong magnetic field to allow for deterministic control of magnetic order. Here, we make use of the well-known multiferroic magnetoelectric, BiFeO3, to demonstrate non-volatile, hysteretic, electric-field control of thermally excited magnon current in the absence of an applied magnetic field. These findings are an important step toward magnon-based devices, where electric-field-only control is highly desirable.

34 pages, 4 figures, 9 supplemental figures

References in corpus (12)

• First-principles study of spontaneous polarization in multiferroic BiFeO${}_3$
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• Electric-field control of spin waves at room temperature in multiferroic BiFeO3
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• Electrical control of magnon propagation in multiferroic BiFeO3 films
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Cited by in corpus (4)

• Spin and spin current -- From fundamentals to recent progress
• Spin Seebeck Effect: Sensitive Probe for Elementary Excitation, Spin Correlation, Transport, Magnetic Order, and Domains in Solids
• Multiferroicity and Topology in Twisted Transition Metal Dichalcogenides
• Spin-current driven Dzyaloshinskii-Moriya interaction in the multiferroic BiFeO3 from first-principles