Magnonic band structure of a two-dimensional magnetic superlattice

Glade Sietsema; Michael E Flatté

doi:10.48550/arxiv.1111.2506

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Magnonic band structure of a two-dimensional magnetic superlattice

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Magnonic band structure of a two-dimensional magnetic superlattice

Glade Sietsema and Michael E Flatté

11/10/2011

DOI: 10.48550/arxiv.1111.2506

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Abstract

The frequencies and linewidths of spin waves in a two-dimensional periodic superlattice 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.

Details

Title: Subtitle: Magnonic band structure of a two-dimensional magnetic superlattice
Creators: Glade Sietsema
Michael E Flatté
Resource Type: Preprint
DOI: 10.48550/arxiv.1111.2506
Language: English
Date posted: 11/10/2011
Academic Unit: Electrical and Computer Engineering; Physics and Astronomy
Record Identifier: 9984442197302771

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