Characterisation of some magnetic and magnetoelectric properties of ferroelectric Pb(Fe_1/2Nb_1/2)O₃

The magnetic properties of Pb(Fe₁/2Nb_1/2)O₃ have been studied by neutron diffraction on a polydomain single crystal and susceptibility measurements on a single ferroelectric domain. A Néel temperature of $$ 160K was found but no further anomalies were indicated by the susceptibility data. No evidence of a spontaneous magnetic moment. Preliminary magnetoelectric measurements on single ferroelectric domains are presented.