a Institute for Materials Science, Kiev, Ukraine
b University of Latvia, Riga., Latvia
c Inst. of Chemical Tech, Pardubice, Czech Republic
d CPTD. Hrodec Kralove, Czerh Republic
Abstract:
X-band EPR spectra of PLZT 1/65/35 and PLZT 8/65/35 doped with 1% FE3+ were recorded at temperature range -175°C to 200°C. Three types of paramagnetic centers were found. Two of them are in strong axial and rhombic crystal field due to neighboring oxygen and lead vacancies. The other center has symmetry determined by polarization and oxygen octahedra tilt. EPR spectra of PLZT 8/65/35 are in agreement with its glassy behavior.