Journal article
Electric-Field Control of Magnon Gaps in a Ferromagnet using a Spatially-Periodic Electric Field
Spin (World Scientific (Firm)), Vol.7(3), p.1740012
09/2017
DOI: 10.1142/S2010324717400124
Abstract
The frequencies and linewidths of spin waves in one-dimensional (1D) and two-dimensional (2D) periodic superlattices of magnetic materials are found, using the Landau–Lifshitz–Gilbert equations. The form of the exchange field from a surface-torque-free boundary between magnetic materials is derived, and magnetic-material combinations are identified which produce gaps in the magnonic spectrum across the entire superlattice Brillouin zone for hexagonal and square-symmetry superlattices. The magnon gaps and spin-wave dispersion properties of a uniform magnetic material under the influence of a periodic electric field are presented. Such results suggest the utility of magnetic insulators for electric-field control of spin-wave propagation properties.
Details
- Title: Subtitle
- Electric-Field Control of Magnon Gaps in a Ferromagnet using a Spatially-Periodic Electric Field
- Creators
- Glade Sietsema - University of IowaTianyu Liu - University of IowaMichael E Flatté - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Spin (World Scientific (Firm)), Vol.7(3), p.1740012
- DOI
- 10.1142/S2010324717400124
- ISSN
- 2010-3247
- eISSN
- 2010-3255
- Language
- English
- Date published
- 09/2017
- Academic Unit
- Physics and Astronomy; Electrical and Computer Engineering
- Record Identifier
- 9984199676502771
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