Raman scattering results at room temperature on powdered and solid samples of La2-x(Ba,Sr)xCuO4 in the range x=0-0.2 are presented. Laser hetaing in air is shown to produce a surface layer of La2O3, a transparent insulator. The temperature dependence of the La2O3 Raman lines provides an indication of the temperature produced by the laser.
Thin Film Processing and Characterization of High-Temperature Superconductors
- Pub Date:
- February 1988
- Other nonmetallic inorganics;
- Cold working work hardening;
- annealing post-deformation annealing quenching tempering recovery and crystallization