Abstract

The dielectric loss of the crystals CsI + Ca2+, CsI + Sr2+ has been studied. Their dielectric loss curves show only one peak for each temperature. The temperature dependence of “peak frequency” obeys an “Arrhenius relation” and thus the energies E for the reorientation of complexes may be determined. In both crystals, CsI + Ca2+ and CsI + Sr2+, the values of E are the same. The latter result is theoretically discussed. Es werden die dielektrischen Verluste von CsJ + Ca2+ -und CsJ + Sr2+-Kristallen untersucht. Ihre dielektrischen Verlustkurven zeigen nur ein Maximum fur jede Temperatur. Die Temperaturabhangigkeit der „Maximumfrquenz” gehorcht einer „Arrheniusbeziehung”; somit konnen die Energien E fur die Reorientierung der Komplexe bestimmt werden. In den beiden Kristallen, CsJ + Ca2+ und CsJ + Sr2+ sind die Werte von E dieselben. Dieses Ergebnis wird theoretisch diskutiert.

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