Rj. Wallace et al., DC RESISTANCE AND DIELECTRIC FUNCTION AT 3392 NM OF YBCO FILMS FROM 300 K TO 80 K, Czechoslovak journal of Physics, 46, 1996, pp. 1395-1396
The dielectric function of a YBCO film was determined at 3392nm at tem
peratures down to 80K. Results obtained were epsilon(i) = -24.09 - 0.0
013T and epsilon(i) = 7.66 + 0.067T. The results for epsilon(i) are co
mpared with the de resistance of the film. Intrinsic intragrain scatte
ring, elastic and inelastic grain boundary scattering and optical inte
rband absorption are estimated as 82%, 5%, 13% and 10% respecively at
0K.