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Photoacoustic measurements of the thermal properties of AlyGa1-yAs alloys in the region 0<y<0.5

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Ga1-yAs alloys grown by liquid phase epitaxy on GaAs substrates, by means of the open photoacoustic cell detection technique and the temperature-rise method under continuous light illumination. The values of the thermal conductivity, diffusivity and specific heat were obtained in the 0<y<0.5 region, where the AlyGa1-yAs band gap is mainly direct. The technique presented here is based upon an effective sample model which is shown to be suitable for the determination of the thermal properties of two layer semiconductor specimens.

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Authors and Affiliations

  1. Depto. de Física, CINVESTAV-IPN, A.P. 14-740 México D.F. 07000, México (Fax: +52-57477-096, E-mail: fisjja@fis.cinvestav.mx), , , , , , MX

    J.L. Pichardo, E. Marín, J.J. Alvarado-Gil & J.G. Mendoza-Alvarez

  2. Programa Multidisciplinario de Ciencias Aplicadas y Tecnología Avanzada, CINVESTAV-IPN, A.P. 14-740, México D.F. 07000, México., , , , , , MX

    A. Cruz-Orea, I. Delgadillo & H. Vargas

  3. Laboratorio de Investigación en Materiales, CINVESTAV-UAQ, C. Universitario, C. de las Campanas, Querétaro, Qro., México, , , , , , MX

    G. Torres-Delgado

Authors
  1. J.L. Pichardo
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  2. E. Marín
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  3. J.J. Alvarado-Gil
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  4. J.G. Mendoza-Alvarez
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  5. A. Cruz-Orea
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  6. I. Delgadillo
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  7. G. Torres-Delgado
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  8. H. Vargas
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Received: 15 November 1996/Accepted: 5 March 1997

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Pichardo, J., Marín, E., Alvarado-Gil, J. et al. Photoacoustic measurements of the thermal properties of AlyGa1-yAs alloys in the region 0<y<0.5 . Appl Phys A 65, 69–72 (1997). https://doi.org/10.1007/s003390050544

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  • DOI: https://doi.org/10.1007/s003390050544

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