Nonbolometric Infrared Detection in La2-xSrxCuO4 and YBa2Cu3Oy Epitaxial Thin Films
- 1 March 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (3A) , L466
- https://doi.org/10.1143/jjap.29.l466
Abstract
The electrical responses to infrared radiation of La2-x Sr x CuO4(100) and YBa2Cu3O y (110) epitaxial thin films with relatively low T c values and J c values of 104–105 A/cm2 are studied using modulated laser light. These films show apparent nonbolometric responses at temperatures below the transition regions which are strongly dependent on the bias current. The difference in the observed responsivity between these high-T c materials and BaPb1-x Bi x O3 can be explained on the basis of nonequilibrium superconductivity.Keywords
This publication has 16 references indexed in Scilit:
- Optical and electrical enhancement of flux creep in epitaxial filmsPhysical Review Letters, 1989
- Nonlinear optical response of granular Y-Ba-Cu-O filmsPhysical Review B, 1989
- Anisotropic transport and optical properties of superconducting (La1-xSrx)2CuO4single crystal thin filmsPhase Transitions, 1989
- YBa/sub 2/Cu/sub 3/O/sub 7/ thin films grown by high pressure reactive evaporation and high pressure reactive sputteringIEEE Transactions on Magnetics, 1989
- Optical response of YBCO thin films and weak-linksIEEE Transactions on Magnetics, 1989
- Photoconductive response of granular superconducting filmsIEEE Transactions on Magnetics, 1989
- Infrared optical detector using superconducting oxide thin filmPhysica C: Superconductivity and its Applications, 1988
- Largely Anisotropic Superconducting Critical Current in Epitaxially Grown Ba2YCu3O7-y Thin FilmJapanese Journal of Applied Physics, 1987
- Highly Sensitive Optical Detector Using Superconducting Oxide BaPb0.7Bi0.3O3 (BPB)Japanese Journal of Applied Physics, 1984
- Quasiparticle and phonon lifetimes in superconductorsPhysical Review B, 1976