Electron Spin Resonance In CuCrS2 and CuCrSe2 Single Crystals

Abstract

Single crystal ESR spectra of CuCrS₂ and CuCrSe₂ have been measured at both X- and Q-band frequencies. Anisotropic signals from the localised Cr³⁺ d-electrons give zero-field splitting parameters of 0.29cm^?1 and 0.31cm^?1 for the sulphide and selenide respectively, suggesting a possible orbital interaction between the Cr and Cu ions. The dependence of the ESR parameters on temperature shows the effect of magnetic ordering.