Abstract
We study losses in different CVD diamonds in the frequency range 50–210 GHz at temperatures 300– 900 K by using a high-Q open Fabry-Perot cavity. It is found that the effective activation energies determining a sharp increase in losses at high temperatures are distributed in the range 0.4–0.8 eV. We propose a formula which relates the frequency and temperature dependences of losses for different CVD-diamond specimens in the first approximation. Suggestions on the nature of these losses are put forward.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 47, No. 12, pp. 1087–1095, December, 2004.
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Parshin, V.V., Garin, B.M., Myasnikova, S.E. et al. Dielectric losses in CVD diamonds in the millimeter-wave range at temperatures 300–900 K. Radiophys Quantum Electron 47, 974–981 (2004). https://doi.org/10.1007/s11141-005-0039-0
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DOI: https://doi.org/10.1007/s11141-005-0039-0