DEPENDENCE OF AC CONDUCTIVITY ON TEMPERATURE AND FREQUENCY IN CERIUM(III) NITRATE CRYSTAL

摘要

Ac conductivity spectra from 20 Hz to 1 MHz along the c axis of a cerium(III) nitrate hexahydrate Ce(NO3)3.6H2O crystal and perpendicular to it were measured at RT to 10 K. A metastable phase was found from RT to about 223 K. A peak was found in the conductivity near 130 K perpendicular to the c axis. The behavior of the conductivity is dependent on the crystal direction but independent of the measuring run. 26 refs.