Spin Waves: History and a Summary of Recent Developments

Mills, D. L.

doi:10.1002/9780470022184.hmm121

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The Magnon Lifetime1

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2020

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“…For the sake of completeness we just briefly discuss the important aspects in this section. For an extended discussion we refer the reader to references [127,[132][133][134][135][136][137][138][139][140][141][142][143].…”

Section: The Magnon Lifetimementioning

confidence: 99%

Magnonic crystals: towards terahertz frequencies

Zakeri

2020

J. Phys.: Condens. Matter

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This topical review presents an overview of the recent experimental and theoretical attempts on designing magnonic crystals for operation at different frequencies. The focus is put on the microscopic physical mechanisms involved in the formation of the magnonic band structure, allowed as well as forbidden magnon states in various systems, including ultrathin films, multilayers and artificial magnetic structures. The essential criteria for the formation of magnonic bandgaps in different frequency regimes are explained in connection with the magnon dynamics in such structures. The possibility of designing small-size magnonic crystals for operation at ultrahigh frequencies (terahertz and sub-terahertz regime) is discussed. Recently discovered magnonic crystals based on topological defects and using periodic Dzyaloshinskii-Moriya interaction, are outlined. Different types of magnonic crystals, capable of operation at different frequency regimes, are put within a rather unified picture.

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