Muon Spin Precession in the Hexagonal Antiferromagnet FeSn

Abstract

Muon spin precession spectra are observed in transverse field geometry at all temperatures, including the antiferromagnetic state. This unique behaviour is a consequence of the chemical and magnetic structure of FeSn. The observed precession signals contain two components, one at a frequency corresponding to the external field and, in an intermediate temperature range, a second one corresponding to a field at the muon of 0.21 T extrapolated to 0 K.