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|Title:||Generalized surface, pseudosurface, and high-frequency pseudosurface acoustic waves on (001), (110), and (111) InSb|
|Authors:||Kuok, M.H. |
|Citation:||Kuok, M.H., Ng, S.C., Zhang, V.L., Chua, S.J. (2000-12-15). Generalized surface, pseudosurface, and high-frequency pseudosurface acoustic waves on (001), (110), and (111) InSb. Physical Review B - Condensed Matter and Materials Physics 62 (24) : 16665-16670. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.62.16665|
|Abstract:||A comprehensive polarization Brillouin study has been carried out on the dependence of the phase velocities of the generalized surface, pseudosurface, and high-frequency pseudosurface acoustic waves on their propagation direction on the (001), (110), and (111) surfaces of InSb. The pseudosurface wave was found to have two angular dispersion branches arising from its respective sagittal and shear-horizontal displacement components. The dispersion curve of the latter was found to extend into regions which are not bounded by the two transverse bulk mode branches, where pseudosurface waves are conventionally thought to be absent. An observation of high-frequency pseudosurface modes in InSb is also reported.|
|Source Title:||Physical Review B - Condensed Matter and Materials Physics|
|Appears in Collections:||Staff Publications|
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