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Investigation of thermal dependence of phonon frequencies, sound velocity, mechanical and optical characteristics of the β-GaN semiconductor compound

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A Correction to this article was published on 23 June 2023

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Abstract

In this work, the sound velocity and some of the mechanical, optical and optical phonon frequencies of the semiconductor β-GaN have been studied. The proposed temperature dependency of the pseudopotential form factors was used together with the empirical pseudopotential technique (EPM). The precise form factors for each temperature are computed using the suggested model. Calculations have been done to determine the temperature-dependent values of the energy gaps, sound velocity, refractive index, elastic constants, mechanical moduli, phonon frequencies and dielectric constants. The findings and the published and experimental data in the literature are in good agreement. These findings can be used as a guide for physical parameter values that are difficult to quantify experimentally.

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Acknowledgements

Thanks are due to Prof. Dr Mohammed Sallah, Physics Department, Faculty of Science, Mansoura university for helping in writing, editing and revising the paper. The second author has done his contribution in this work under the NANOSOLARCELLS project and he would like to appreciate the support of Academy of Scientific Research and Technology for being a member of LEAP-RE consortium and support the project NANOSOLARCELLS entitled “Integration of photonic conversion layers based on photoemissive nanostructured materials for improving sunlight harvesting ability of solar cells”. NANOSOLARCELLS is part of LEAP-RE program, which received funding from European Union’s Horizon 2020 Research and Innovation Program under grant agreement 963530.

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Authors and Affiliations

  1. Physics Department, College of Natural Sciences and Mathematics, University of Houston, Houston, USA

    Ahmed M Abuali

  2. Physics Department, Faculty of Science, Mansoura University, P.O. Box 35516, Mansoura, Egypt

    Elkenany B Elkenany

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  1. Ahmed M Abuali
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  2. Elkenany B Elkenany
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Correspondence to Elkenany B Elkenany.

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Abuali, A.M., Elkenany, E.B. Investigation of thermal dependence of phonon frequencies, sound velocity, mechanical and optical characteristics of the β-GaN semiconductor compound. Pramana - J Phys 97, 60 (2023). https://doi.org/10.1007/s12043-023-02528-x

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  • DOI: https://doi.org/10.1007/s12043-023-02528-x

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