Abstract
Ionic thermocurrents in SrCl2-K crystals have been investigated for the first time. Two maxima of thermally stimulated depolarization currents have been detected at T=112°K and T=210–240°K. The low-temperature maximum with a reorientation energy ɛ=0.25 eV and a frequency factor νo=7.1·109 Hz is due to relaxation of impurity-vacancy dipoles. Its intensity grows linearly with the concentration of the dopand. The high-temperature maximum is due to the space charge. Its activation energy ɛ=0.46 eV coincides with the migration energy of anion vacancies associated with the potassium ions.
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