Spin–Lattice Coupling Coefficients Gij for Trigonal Al2O3:Fe3+ and ZnSiF6 · 6H2O:Ni2+ Crystals2)

Abstract

AbstractBy expressing the six spin–lattice coupling coefficients G in trigonal symmetry in terms of the coefficients G and G in cubic symmetry, the coefficients G for trigonal Al2O3 : Fe3+ and ZnSiF6 · 6 H2O : Ni2+ crystals are calculated from the values of G and G obtained from a simple and uniform method within the framework of cubic symmetry approximation. The results for the Al2O3 : Fe3+ crystal is in agreement with the experimental findings, whereas for ZnSiF6 · 6 H2O : Ni2+, the agreement for part of coefficients is poor. The reasons for the disparity are discussed.