Low-temperature magnetic susceptibility of LiErF4: evidence of antiferromagnetic ordering at 0.38K

Abstract
The principal magnetic susceptibilities chi /sub /// and chi perpendicular to of LiErF4 have been measured in the temperature range 0.32-4.2K. An antiferromagnetic transition has been observed at 0.38K in agreement with the theoretical prediction for dipolar interactions and axial symmetry with gperpendicular to >g/sub ///.