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Phononic and magnonic dispersions of surface waves on a permalloy/BARC nanostructured array
Pan H.1; Zhang V.L.1; Di K.1; Kuok M.H.1; Lim H.S.1; Ng S.C.1; Singh N.2; Adeyeye A.O.1
2013-03-25
Source PublicationNanoscale Research Letters
ISSN19317573 1556276X
Volume8Issue:1Pages:1-6
AbstractPhononic and magnonic dispersions of a linear array of periodic alternating NiFeand bottom anti-reflective coating nanostripes on a Si substrate have been measured using Brillouin light scattering. The observed phononic gaps are considerably larger than those of laterally patterned multi-component crystals previously reported, mainly a consequence of the high elastic and density contrasts between the stripe materials. Additionally, the phonon hybridization bandgap has an unusual origin in the hybridization and avoided crossing of the zone-folded Rayleigh and pseudo-Sezawa waves. The magnonic band structure features near-dispersionless branches, with unusual vortex-like dynamic magnetization profiles, some of which lie below the highly-dispersive fundamental mode branch. Finite element calculations of the phononic and magnonic dispersions of the magphonic crystal accord well with experimental data. © 2013 Pan et al.; licensee Springer.
KeywordBandgaps Brillouin light scattering Magphonic crystal Phononic and magnonic dispersions
DOI10.1186/1556-276X-8-115
URLView the original
Language英語
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Cited Times [WOS]:14   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.National University of Singapore
2.A-Star, Institute of Microelectronics
Recommended Citation
GB/T 7714
Pan H.,Zhang V.L.,Di K.,et al. Phononic and magnonic dispersions of surface waves on a permalloy/BARC nanostructured array[J]. Nanoscale Research Letters,2013,8(1):1-6.
APA Pan H..,Zhang V.L..,Di K..,Kuok M.H..,Lim H.S..,...&Adeyeye A.O..(2013).Phononic and magnonic dispersions of surface waves on a permalloy/BARC nanostructured array.Nanoscale Research Letters,8(1),1-6.
MLA Pan H.,et al."Phononic and magnonic dispersions of surface waves on a permalloy/BARC nanostructured array".Nanoscale Research Letters 8.1(2013):1-6.
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