Microwave and microstructural studies of silver-doped YBa2Cu3O7-δ thin films
Journal Publication ResearchOnline@JCUJacob, Mohan V.;Mazierska, Janina;Kim, Jeha;Kang, Kwang-Yong;Srivastava, G.P.
Abstract
Using the sapphire dielectric resonator method, we investigated the effect of silver on the microwave properties of high-temperature superconducting YBa₂Cu₃O₇-δ (YBCO) thin films on MgO substrates at 25 GHz. Silver-doped YBCO films were prepared by laser ablation from targets of Ag doping of 2, 6, 8 and 10 wt%, and their crystal structures were characterized by x-ray diffraction and scanning electron microscopy. The surface resistance of Ag-doped YBCO films decreased by 20% when the doping level increased from 2 wt% to 10 wt%, which showed a correlation with improved microstructure of films.
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11
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1361-6668
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Issue
11
Pages Count
5
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Institute of Physics Publishing
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DOI
10.1088/0953-2048/11/11/004