Composition Dependence of Surface Phonon Polariton Mode in Wurtzite InxGa1−xN (0 ≤ x ≤ 1) Ternary Alloy

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2008 Chinese Physical Society and IOP Publishing Ltd
, , Citation S. S. Ng et al 2008 Chinese Phys. Lett. 25 4378 DOI 10.1088/0256-307X/25/12/054

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shashiong@yahoo.com

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1 Nano-Optoelectronics Research and Technology Laboratory, School of Physics, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia

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  1. Received 12 September 2008
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0256-307X/25/12/4378

Abstract

We present a theoretical study on the composition dependence of the surface phonon polariton (SPP) mode in wurtzite structure α-InxGa1-xN ternary alloy over the whole composition range. The SPP modes are obtained by the theoretical simulations by means of an anisotropy model. The results reveal that the SPP mode of α-InxGa1-xN semiconductors exhibits one-mode behaviour. From these data, composition dependence of the SPP mode with bowing parameter of −28.9 cm−1 is theoretically obtained.

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