Effect of temperature and time on paramagnetic resonance of Mn²⁺ in NaCl single crystal

Abstract

Exchange of intensities among various spectra of Mn²⁺ in NaCl single crystal, corresponding to Mn⁺² ion associated with various point defects, is described as a function of temperature and time. The variation of line width with temperature is discussed. The fine structure parameter D for a particular spectrum is measured with temperature and is shown to behave like D=D0 (1+bT+cT²). Thermal formation of new complexes and their lifetimes are discussed. A new short-lived complex is found and a model for the same is suggested.