Portal de Periódicos da CAPES

Thin-film photopyroelectric detection of thermal impulse response of single-crystalline YBa 2 Cu 3 O 7-x

1990; IOP Publishing; Volume: 1; Issue: 2 Linguagem: Inglês

10.1088/0957-0233/1/2/014

1361-6501

I. Alex Vitkin, S. B. Peralta, Andreas Mandelis, W. Sadowski, E. Wałker,

Seismic Waves and Analysis

Photopyroelectric impulse response measurements carried out on single-crystalline YBa2Cu3O7-x are reported over the temperature range from 20 to 300 K. The photopyroelectric signal sensitivity to the superconducting transition is demonstrated; an increases in the impulse time delay at temperatures above 200 K is also detected. The results suggest the applicability of this simple and sensitive thermal wave technique to non-intrusive temperature studies of high-Tc superconductors.