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Phonons and Crystalline Structure of Hg1-xCdxSe Alloys (0 < x ≤ 0.5)

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Phonons and crystalline structures of Hg1-xCdxSe alloys (0 ≤ x ≤ 0.5) were studied by Raman spectroscopy and X-ray powder diffraction patterns at 298K. The crystalline alloys were prepared by a special combination of synthesis and the Bridgman method. Experimental data showed a face-centered cubic structure, (No. 216), for all samples, exhibiting a linear dependence for Cd molar fraction, x, for cell parameters, a, and the mass densities, ρ. Phonon frequencies were analyzed using the Romčević-Romčević model for phonons in multicomponent alloys, obtaining a fair agreement with experimental data. Furthermore, an algorithm to implement the Romčević-Romčević model is proposed.

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Acknowledgments

We gratefully acknowledge the financial support of the Universidad Industrial de Santander, COLCIENCIAS and CDCHT-ULA. The authors thank: “Grupo de Física de Nuevos Materiales, Departamento de Física, Universidad Nacional de Colombia, Bogotá DC, Colombia” and “Centro de Estudio de Semiconductores, Facultad de Ciencia, Universidad de los Andes, La Hechicera, Mérida, Venezuela” for the measuring time. A special acknowledgment goes to Professor J. Roa-Rojas for his support and collaboration and to professor Maja Romčević for the suggestions in implementing the Romčević-Romčević model for Hg1-xCdxSe.

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Authors and Affiliations

  1. CIMBIOS, Escuela de Física, Facultad de Ciencias, Universidad Industrial de Santander, Cr. 27 Cll. 9, Bucaramanga, Colombia

    David A. Miranda

  2. Laboratorio de Física Aplicada, Departamento de Física, Facultad de Ciencias, Universidad de los Andes, La Hechicera, Mérida-5101, Venezuela

    S. A. López-Rivera

  3. Centro de Estudio de Semiconductores, Facultad de Ciencias, Universidad de los Andes, La Hechicera, Mérida-5101, Venezuela

    Ch. Power

  4. Grupo de Investigación en Química Estructural (GIQUE), Escuela de Química, Facultad de Ciencias, Universidad Industrial de Santander, Cr. 27 Cll. 9, Bucaramanga, Colombia

    J. A. Henao & M. A

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Miranda, D.A., López-Rivera, S.A., Power, C. et al. Phonons and Crystalline Structure of Hg1-xCdxSe Alloys (0 < x ≤ 0.5). MRS Online Proceedings Library 1372, 1–6 (2011). https://doi.org/10.1557/opl.2012.115

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