Dielectric Relaxation in Nickel Fluorosilicate Hexahydrate
- 1 January 1978
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 17 (1) , 27-30
- https://doi.org/10.1088/0031-8949/17/1/006
Abstract
Dielectic properties of single crystals of Ni-, Fe-, and Zn-fluorosilicates have been studied from 100 to 270 K. In spite of the symmetry of the ions, NiSiF6 · 6H2O shows sharp dielectric losses with activation energy E a = 6.8 kcal/mole. The loss frequencies are compared with SiF6 -2 reorientation motion and H2O flip motion determined by NMR. Fe- and Zn-fluorosilicates have no clear loss maxima.Keywords
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