Magnetism in multiferroic Pb[sub]5 Cr[sub]3 F[sub]{19}
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We report on the first observation of a magnetic transition in multiferroic ▫${rm Pb_5Cr_3F_{19}}$▫. The system undergoes a ferroelectric transition at ▫$T_C$▫ = 545 K and probably an antiferromagnetic transition around ▫$T_N$▫ = 11 K. Between 50 K and ▫$T_N$▫, the system is not paramagnetic but shows the presence of correlated spin clusters, indic...
