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Lawrence DrabeckDepartment of Physics and Solid State Science Center, University of California, Los Angeles, California 90024-1547John P. CariniDepartment of Physics and Solid State Science Center, University of California, Los Angeles, California 90024-1547G. GrünerDepartment of Physics and Solid State Science Center, University of California, Los Angeles, California 90024-1547T. L. HyltonDepartment of Physics and Solid State Science Center, University of California, Los Angeles, California 90024-1547K. CharDepartment of Physics and Solid State Science Center, University of California, Los Angeles, California 90024-1547M. R. BeasleyDepartment of Physics and Solid State Science Center, University of California, Los Angeles, California 90024-1547
1989lv
ABI
Аннотация
Measurements of the temperature dependence of the surface resistance ${R}_{s}$ and of the surface reactance ${X}_{s}$ at 148 GHz are reported for $\mathrm{Y}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ and ${\mathrm{Y}}_{2}{\mathrm{Ba}}_{4}{\mathrm{Cu}}_{8}{\mathrm{O}}_{16\ensuremath{-}\ensuremath{\delta}}$ superconducting films with the $c$ axis oriented perpendicular to the film's substrate. For low temperatures ($T<\frac{{T}_{c}}{2}$) we find ${X}_{s}(T)\ensuremath{-}{X}_{s}(0)=B{T}^{2}$ and ${R}_{s}(T)\ensuremath{-}{R}_{s}(0)=AT$. The implications of these results are discussed.
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