P Doussineau, Y Farssi, C Frenois, A Levelut… - Physical review …, 1993 - APS
We have studied the relaxation of off-center Li+ ions in KTaO 3 by dielectric measurements
on 1% and 1.5% crystals, from 20 Hz to 2 MHz and from 4 to 200 K. The shape of the ɛ''vs …