10 June 1996 Determination of the penetration depth in YBa2Cu3O7 thin films from far-infrared transmission
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Abstract
Transmission measurements in the range 130 GHz - 500 GHz on YBa2Cu3O7- (delta ) epitaxial thin films are reported and discussed. We deduce the absolute value of the electromagnetic penetration depth (lambda) (T) from the frequency variation of the transmission. We concentrate on our highest quality film, which yields (lambda) (OK) equals (1570 plus or minus 200 angstrom), associated with a linear temperature dependence of (lambda) (T) which maps at low temperature (T less than 20 K) the data on high quality single crystals. We derive the real part of the conductivity from the small difference between the film and the single crystal data.
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Nicole Bontemps, Nicole Bontemps, Louis-Anne de Vaulchier, Louis-Anne de Vaulchier, } "Determination of the penetration depth in YBa2Cu3O7 thin films from far-infrared transmission", Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); doi: 10.1117/12.241746; https://doi.org/10.1117/12.241746
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