Low temperature optical study of manganous chloride

M. Régis , Y. Farge

The low temperature absorption spectrum of MnCl2 is reported. A calculation of the expected magnetic circular dichroism and its correlation with magnetization is performed for the optical transition 6A 1g(6S) → 4A1g(4G), 4Eg(4G) at 23 557 cm-1. The experimental results of MCD and CD in zero field are reported and the magnetic phase diagram is plotted. A linear dichroism is also observed in the two ordered phases. The magnetic order is discussed in view of these new data.

Mots clés: antiferromagnetic properties of substances; magnetic circular dichroism; magnetic transitions of substances; manganese compounds; visible and ultraviolet spectra of inorganic solids

Domaines: Articles anciens

M. Régis, Y. Farge. Low temperature optical study of manganous chloride. Journal de Physique, 1976, 37 (5), pp.627-636. ⟨10.1051/jphys:01976003705062700⟩. ⟨jpa-00208457⟩