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The Phonon Heat Capacity of Small Dielectric Crystals at Low Temperatures

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Journal of Russian Laser Research Aims and scope

Abstract

We develop the harmonic oscillator model for description of thermal properties of very small dielectric crystals at very low temperatures. We show that the phonon heat capacity of small crystal samples at temperatures lower than 1K differs significantly from the well-known Debye dependence T3; the capacity becomes a linear function of temperature.

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Authors and Affiliations

  1. Russian-Armenian University, 0051, Yerevan, Armenia

    Artur Ishkhanyan

  2. Institute for Physical Research, 0203, Ashtarak, Armenia

    Artur Ishkhanyan

  3. Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow Region, 141700, Russia

    Vladimir P. Krainov

Authors
  1. Artur Ishkhanyan
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  2. Vladimir P. Krainov
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Correspondence to Vladimir P. Krainov.

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Ishkhanyan, A., Krainov, V.P. The Phonon Heat Capacity of Small Dielectric Crystals at Low Temperatures. J Russ Laser Res 42, 554–557 (2021). https://doi.org/10.1007/s10946-021-09993-y

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  • DOI: https://doi.org/10.1007/s10946-021-09993-y

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