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Determination of the penetration depth in YBa{sub 2}Cu{sub 3}O{sub 7} thin films from far infrared transmission

Book ·
OSTI ID:538187
;  [1]
  1. Ecole Normale Superieure, Paris (France). Lab. de Physique de la Matiere Condensee
Transmission measurements in the range 130GHz--500GHz on YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} epitaxial thin films are reported and discussed. The authors deduce the absolute value of the electromagnetic penetration depth {lambda}(T) from the frequency variation of the transmission. They concentrate on the highest quality film, which yields {lambda}(0K) = (1,570 {+-} 200 {angstrom}), associated with a linear temperature dependence of {lambda}(t) which maps at low temperature (T < 20K) the data on high quality single crystals. They derive the real part of the conductivity from the small difference between the film and the single crystal data.
Sponsoring Organization:
New Energy and Industrial Technology Development Organization, Tokyo (Japan)
OSTI ID:
538187
Report Number(s):
CONF-960163--; ISBN 0-8194-2070-0
Country of Publication:
United States
Language:
English