Local Fields at 2 Muon Sites in Helimagnetic MnSi
Below Tc = 29.5K, MnSi orders magnetically into a rather
exotic structure: the magnitude of the local magnetization is constant
but its direction is a function of position: there is a constant
axial component and a transverse component that spirals about that axis
with a long (compared to the lattice spacing) wavelength.
Fortunately, µSR can measure the magnitude
of the local field regardless of its direction.
There are two muon sites in this crystal, presumably
crystallographically equivalent but with different
local magnetic fields in the ordered phase.
Author: JHB.
Prepared by
Jess H. Brewer
Last modified: Thu Aug 13 16:02:43 PDT 1998