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Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate
Zhang V.L.1; Hou C.G.1; Pan H.H.1; Ma F.S.1; Kuok M.H.1; Lim H.S.1; Ng S.C.1; Cottam M.G.2; Jamali M.1; Yang H.1
2012-07-30
Source PublicationApplied Physics Letters
ISSN00036951
Volume101Issue:5
AbstractBrillouin measurements of the dispersion relations of surface acoustic- and optical-like waves along Γ-M and Γ-X symmetry directions in a two-dimensional bicomponent nanostructured crystal are reported. The sample, in the form of a periodic chessboard array of alternating Permalloy and cobalt square dots on a SiO /Si substrate, was fabricated using high-resolution electron-beam lithographic, sputtering, etching, and lift-off techniques. The measured phononic band structures exhibit diverse features, such as a partial hybridization bandgap and unusual surface optical-like phonon branches, where there are out-of-phase vibrational characteristics between nearest-neighbor dots. Numerical simulations, based on the finite element analysis, reproduced the experimental dispersion relations. © 2012 American Institute of Physics.
DOI10.1063/1.4739950
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.Western University
Recommended Citation
GB/T 7714
Zhang V.L.,Hou C.G.,Pan H.H.,et al. Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate[J]. Applied Physics Letters,2012,101(5).
APA Zhang V.L..,Hou C.G..,Pan H.H..,Ma F.S..,Kuok M.H..,...&Yang H..(2012).Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate.Applied Physics Letters,101(5).
MLA Zhang V.L.,et al."Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate".Applied Physics Letters 101.5(2012).
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