Observation of dual magnonic and phononic bandgaps in bi-component nanostructured crystals

Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4705301

Title:	Observation of dual magnonic and phononic bandgaps in bi-component nanostructured crystals
Authors:	Zhang, V.L. Ma, F.S. Pan, H.H. Lin, C.S. Lim, H.S. Ng, S.C. Kuok, M.H. Jain, S. Adeyeye, A.O.
Issue Date:	16-Apr-2012
Citation:	Zhang, V.L., Ma, F.S., Pan, H.H., Lin, C.S., Lim, H.S., Ng, S.C., Kuok, M.H., Jain, S., Adeyeye, A.O. (2012-04-16). Observation of dual magnonic and phononic bandgaps in bi-component nanostructured crystals. Applied Physics Letters 100 (16) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4705301
Abstract:	We report on the experimental observation of dual magnonic and phononic bandgaps in bi-component nanostructured crystals. The dispersion relations of linear periodic arrays of alternating Fe (or Ni) and Ni 80Fe 20 nanostripes on a SiO 2/Si substrate, mapped by Brillouin spectroscopy, feature distinct bandgaps. Calculations of the magnon and phonon dispersions yield good agreement with experiments. No magnon-phonon interaction is detected for the modes observed, making the structures studied a potential platform for the separate and simultaneous processing of information carried by hypersonic magnons and phonons, with no undesirable cross-talk between them. © 2012 American Institute of Physics.
Source Title:	Applied Physics Letters
URI:	http://scholarbank.nus.edu.sg/handle/10635/82794
ISSN:	00036951
DOI:	10.1063/1.4705301
Appears in Collections:	Staff Publications

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