Abstract
High-frequency properties of resonant structures based on thin films of YBa2Cu3O7–δ high-temperature superconductor are studied experimentally in the frequency range 30–100 MHz. The structures planar induction coils with a self-capacitance fabricated on neodymium gallate and lanthanum aluminate substrates. The unloaded Q factor of the circuits exceeds 2 × 105 at 77 K and 40 MHz. Possible loss mechanisms that determine the Q factor of the superconducting resonant structures in the megahertz range are considered.
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Original Russian Text © D.V. Masterov, S.A. Pavlov, A.E. Parafin, 2008, published in Zhurnal Tekhnicheskoĭ Fiziki, 2008, Vol. 78, No. 5, pp. 99–102.
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Masterov, D.V., Pavlov, S.A. & Parafin, A.E. Q factor of megahertz LC circuits based on thin films of YBaCuO high-temperature superconductor. Tech. Phys. 53, 629–632 (2008). https://doi.org/10.1134/S1063784208050162
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DOI: https://doi.org/10.1134/S1063784208050162