Anomalous high field magnetic properties of a third stage CrCl 3 graphite intercalation compound and induced magnetism in the ternary layered compound C 21CrCl 3(MnCl 2) 2

Abstract

The magnetisation of the third stage graphite intercalation compound (GIC) with CrCl 3 exhibits an anomalous behaviour in high magnetic fields analogous to the first stage CoCl 2 GIC. This anomaly can be explained by magnetostriction. The ternary graphite compound with CrCl 3 and MnCl 2 is a stacking of ferromagnetic CrCl 3 layers alternating with paramagnetic MnCl 2 layers. It is shown that a magnetic polarisation is induced by the ordered ferromagnetic layers on the paramagnetic ones. At low temperatures a long range antiferromagnetic order sets in.