Pm. Nikolic et al., Some thermal and electronic transport properties of YBa2Cu3O7-x obtained by the photoacoustic method, ANAL SCI, 17, 2001, pp. S145-S147
The possibility of simultaneous determination of some thermal and transport
properties of polycrystalline YBa2Cu3O7-x using a photoacoustic (PA) metho
d was investigated. Both the amplitude and phase PA signals were measured a
s a function of the modulation frequency of the laser beam. Thermal diffusi
vity, the coefficients of the carrier diffusion, the excess-carrier lifetim
e and optical absorption coefficient were calculated by fitting experimenta
l spectra and theoretical photoacousic signals.