Please use this identifier to cite or link to this item:
|Title:||Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate|
|Authors:||Zhang, V.L. |
|Source:||Zhang, V.L., Hou, C.G., Pan, H.H., Ma, F.S., Kuok, M.H., Lim, H.S., Ng, S.C., Cottam, M.G., Jamali, M., Yang, H. (2012-07-30). Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate. Applied Physics Letters 101 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4739950|
|Abstract:||Brillouin 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 2/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.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 14, 2018
WEB OF SCIENCETM
checked on Jan 17, 2018
checked on Feb 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.