Infrared properties of high T(sub c) superconductors
Abstract
Over the past several years a coherent phenomenology of the high T(sub c) cuprate superconductors has emerged. Infrared measurements contributed several important ingredients to this picture. Chief among those contributions are the following: (1) the inference of a scattering rate that is linear in frequency for omega greater than T, and of order omega; (2) a characteristic energy scale in the superconducting state of 500 cm(exp -1) (60 meV), which can be interpreted as a superconducting pair excitation threshold or energy gap; and (3) evidence for unusual temperature dependence in the vicinity of T(sub c). An attempt to describe these aspects of the data is presented here.
- Publication:
-
Presented at the International Conference on Materials and Mechanisms of Superconductivity
- Pub Date:
- 1991
- Bibcode:
- 1991mms..confR..22S
- Keywords:
-
- Energy Gaps (Solid State);
- High Temperature Superconductors;
- Infrared Radiation;
- Optical Properties;
- Phenomenology;
- Temperature Dependence;
- Copper Oxides;
- Lanthanum Oxides;
- Reflectance;
- Scattering;
- Electronics and Electrical Engineering