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arXiv · 1504.08216

DC-assisted microwave quenching of YBa2Cu3O7-{\delta} coplanar waveguide to a highly dissipative state

N. T. Cherpak·A. A. Lavrinovich·A. I. Gubin·S. A. Vitusevich
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Abstract

The paper reports on finding the effect of a strong change in the microwave losses in an HTS-based coplanar waveguide (CPW) at certain values of the input power Pin and direct current Idc. CPW on the basis of 150 nm thick YBa2Cu3O7-{\delta} epitaxial film on a single crystal MgO substrate was studied experimentally. A sharp and reversible transition of the CPW into a strongly dissipative state at the certain meanings of Pin and Idc depending on temperature was observed. Apparently the effect can be explained by self-heating of HTS structure caused by magnetic flux flow under the joint influence of MW and DC.

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N. T. Cherpak, A. A. Lavrinovich, A. I. Gubin, S. A. Vitusevich. 2015-04-30. DC-assisted microwave quenching of YBa2Cu3O7-{\delta} coplanar waveguide to a highly dissipative state. https://doi.org/10.1063/1.4890123

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