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  Identifying and Constructing Complex Magnon Band Topology

Corticelli, A., Moessner, R., & McClarty, P. A. (2023). Identifying and Constructing Complex Magnon Band Topology. Physical Review Letters, 130(20): 206702. doi:10.1103/PhysRevLett.130.206702.

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Corticelli, Alberto1, Author           
Moessner, Roderich1, Author           
McClarty, Paul A.1, Author           
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1Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 Abstract: Magnetically ordered materials tend to support bands of coherent propagating spin wave, or magnon, excitations. Topologically protected surface states of magnons offer a new path toward coherent spin transport for spintronics applications. In this work we explore the variety of topological magnon band structures and provide insight into how to efficiently identify topological magnon bands in materials. We do this by adapting the topological quantum chemistry approach that has used constraints imposed by time reversal and crystalline symmetries to enumerate a large class of topological electronic bands. We show how to identify physically relevant models of gapped magnon band topology by using so-called decomposable elementary band representations, and in turn discuss how to use symmetry data to infer the presence of exotic symmetry enforced nodal topology.

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Language(s): eng - English
 Dates: 2023-05-192023-05-19
 Publication Status: Issued
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 130 (20) Sequence Number: 206702 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1