Photoacoustic characterization of chalcogenide glasses: Thermal diffusivity of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Ge</mi></mrow><mrow><mi mathvariant="italic">x</mi></mrow></msub></mrow></math></span><span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Te</mi></mrow><mrow><mn>1</mn><mi mathvariant="normal">−</mi><mi mathvariant="italic">x</mi></mrow></msub></mrow></math></span>

J. C. de Lima; N. Cella; L. C. M. Miranda; C. Chying An; A. H. Franzan; N. F. Leite

doi:10.1103/PhysRevB.46.14186

Photoacoustic characterization of chalcogenide glasses: Thermal diffusivity of ${Ge}_{x}$ ${Te}_{1 - x}$

J. C. de Lima, N. Cella, L. C. M. Miranda, C. Chying An, A. H. Franzan, and N. F. Leite

Phys. Rev. B 46, 14186 – Published 1 December 1992

Abstract

The photoacoustic technique is used to investigate the thermal diffusivity of ${Ge}_{x}$ ${Te}_{1 - x}$ glasses as a function of composition. The observed dependence on the composition is explained on the basis of the chemically ordered network model. This interpretation is further supported by x-ray and electrical resistivity measurements.

Received 25 March 1992

DOI:https://doi.org/10.1103/PhysRevB.46.14186

Authors & Affiliations

J. C. de Lima, N. Cella, and L. C. M. Miranda

Instituto Politécnico do Rio de Janeiro, Caixa Postal 97282, 28613, Nova Friburgo, Rio de Janeiro, Brazil

C. Chying An, A. H. Franzan, and N. F. Leite

Laboratório Associado de Sensores e Materiais, Instituto de Pesquisas Espaciais, Caixa Postal 515, 12201, São José dos Campos, São Paulo, Brazil

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Vol. 46, Iss. 21 — 1 December 1992

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Physical Review B

covering condensed matter and materials physics