The influence of CN-ion on electron spin resonance and dielectric absorption in NaCl.Mn2+

Abstract

In sodium chloride crystals doped with both CN^- and Mn²⁺ the CN^- and Mn²⁺ are found to be associated. A Mn²⁺ vacancy dipole associated with CN^- is the centre responsible for Spectrum IV (Watkins) in the esr spectrum of NaCl.Mn²⁺. The 'trimer' lines previously reported are not due to Mn²⁺ vacancy trimers but are found when CN^- is added to the system. The effect of CN^- on the dielectric properties and aggregation of Mn²⁺ in NaCl.Mn²⁺ has been investigated.