SURFACE PHONON–POLARITON MODES OF WURTZITE STRUCTUREInNSEMI-INFINITE CRYSTAL

S. S. Ng (), Z. Hassan and H. Abu Hassan
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S. S. Ng: School of Physics, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia
Z. Hassan: School of Physics, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia
H. Abu Hassan: School of Physics, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia

Surface Review and Letters (SRL), 2009, vol. 16, issue 03, 355-358

Abstract: In this paper, theoretical study on the surface phonon–polariton (SPP) modes of wurtzite (α-) structure indium nitride(InN)semi-infinite crystal is presented. Based on an anisotropy model, the surface polariton (SP) dispersion curve ofα-InNis simulated. The characteristics of this dispersion curve are discussed. The relevant experimental information by attenuated total reflection method is given. For comparison, the SP dispersion curve of cubic (β-) structure InN simulated based on isotropy model is also presented. Due to optical anisotropic, the SP dispersion curve ofα-InNexhibits an extra branch as well as an extra SPP mode as compared toα-InN. In addition, the SPP mode ofα-InNis found to be 4 cm-1smaller than that ofβ-InN.

Keywords: Indium nitride; wurtzite structure; surface phonon–polariton; anisotropy model; attenuated total reflection spectroscopy (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0218625X09012718

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