Hyperfine interaction of V$_{\text{k}}$ centres in Cs$_{_{2}}$NaYCl$_{6}$ crystals

Abstract

In this work we present the results obtained through electron paramagnetic resonance (EPR) spectroscopy of the study of the hyperfine interaction of the V$_{k}$ centres in the Cesium, sodium, yttrium hexachloride (Cs$_{2}$NaYCl$_{6}$) crystals. These electron defect centres are created by $\gamma$-irradiation at liquid nitrogen temperature of the Cs$_{2}$NaYCl$_{6}$ crystals. Our results are: $g_{\|}$=2.008, $g_{\bot}$=2.023, A$_{\|}$=91.21 (gauss) and A$_{\bot}$=3.10 (gauss) and these results are compared with those obtained by Th. Pawlik and J.M. Spaeth [24] for the same system and those of D. Shoemaker [23] for sodium chloride.