Abstract

A resonator method is presented which enables R, and X/sub 8/ to be determined as a function of temperature with the exclusion of the thermal expansion effect. Results for R, and X, are given for a bulk YBCO sample at 13 GHz over the range 15-190 K. Good agreement with the "enhanced" two-fluid model is found for /spl lambda/(T), and /spl lambda/=657 nm at 77 K.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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