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Considerable increase in thermal conductivity of a polycrystalline CVD diamond upon isotope enrichment

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Abstract

We measured the temperature dependence of thermal conductivity of a polycrystalline CVD diamond with natural isotope composition and an isotope enriched (99.96% 12C) sample at temperatures from 5 to 420 K. The isotope enriched diamond demonstrates a considerable growth of thermal conductivity at temperatures above 80 K compared to the diamond with natural composition of isotopes. At room temperature the thermal conductivity reaches 24.3 W·cm−1K−1, and the isotope effect makes up not less than 34%.

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Authors and Affiliations

  1. Russian Research Center “Kurchatov Institute”, pl. Akademika Kurchatova, 1, 123182, Moscow, Russia

    A. V. Inyushkin, A. N. Taldenkov, A. A. Artyukhov, A. A. Artyukhov, Ya. M. Kravets, I. P. Gnidoi, A. L. Ustinov & V. Ya. Panchenko

  2. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia

    V. G. Ralchenko, A. P. Bolshakov, A. F. Popovich, A. V. Savelyev & V. I. Konov

  3. Institute of Radioengineering and Electronics, Russian Academy of Sciences, pl. Vvedenskogo, 1, 141190, Fryazino, Russia

    A. V. Khomich

Authors
  1. A. V. Inyushkin
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  2. V. G. Ralchenko
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  3. A. N. Taldenkov
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  4. A. A. Artyukhov
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  5. A. A. Artyukhov
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  6. Ya. M. Kravets
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  7. I. P. Gnidoi
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  8. A. L. Ustinov
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  9. A. P. Bolshakov
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  10. A. F. Popovich
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  11. A. V. Savelyev
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  12. A. V. Khomich
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  13. V. Ya. Panchenko
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  14. V. I. Konov
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Additional information

Original Russian Text © A.V. Inyushkin, V.G. Ralchenko, A.N. Taldenkov, A.A. Artyukhov, A.A. Artyukhov, Ya.M., Kravets, I.P. Gnidoi, A.L. Ustinov, A.P. Bolshakov, A.F. Popovich, A.V. Savelyev, A.V. Khomich, V.Ya. Panchenko, V.I. Konov, 2007, published in Kratkie Soobshcheniya po Fizike, 2007, Vol. 34, No. 11, pp. 36–43.

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Inyushkin, A.V., Ralchenko, V.G., Taldenkov, A.N. et al. Considerable increase in thermal conductivity of a polycrystalline CVD diamond upon isotope enrichment. Bull. Lebedev Phys. Inst. 34, 329–333 (2007). https://doi.org/10.3103/S106833560711005X

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  • DOI: https://doi.org/10.3103/S106833560711005X

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