Abstract

BARRETO, J; BOLDU, J.L.; CASTILLO, H. del  and  MUNOZ, E. Hyperfine interaction of V_k centres in Cs₂NaYCl₆ crystals. Rev. mex. fis. [online]. 2012, vol.58, n.1, pp.113-116. ISSN 0035-001X.

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 (Cs₂NaYCl₆) crystals. These electron defect centres are created by γ-irradiation at liquid nitrogen temperature of the Cs₂NaYCl₆ crystals. Our results are: g_|| =2.008, g_┴ =2.023, A_|| =91.21 (gauss) and A_┴ =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.

Keywords : Elpasolites; crystal growth; colour centres; EPR.