TRANSVERSAL THERMOVOLTAGES OF (119)BI2SR2CACU2O8-FILMS ON VICINAL (110)SRTIO3 SUBSTRATES(DELTA THIN)

Biaxial textured (119) oriented Bi2Sr2CaCu2O8+delta thin films were fa bricated by DC-Magnetron sputtering on vicinal (110) SrTiO3 substrates . The crystal orientation and stochiometry of the films were obtained from precise X-ray diffraction measurements in four-circle geometry. A ccording to anisotropic transport measurements, the superconducting tr ansition temperature is approximately 47K and the normal state resisti vities along two perpendicular paths differ by a factor of 13.5. Trans versal thermoelectric effects were investigated by measuring thermovol tages transverse to temperature gradients parallel to the surface norm al induced by pulsed laser irradiation. At room temperature and energy densities of 15 mJ/cm(2) thermovoltages up to 355 mV were obtained.