Abstract
The magnetic and crystallographic structure of erbium iron garnet {Er3}[Fe2](Fe3)O12 has been refined simultaneously from powder and single crystal neutron diffraction data. At 5 K the ferrimagnetic structure has a spin direction parallel to [100]. Magnetic moments of iron and erbium and canting angles for the erbium sublattices were derived in space groupI41/acd for 5 K<T<65 K. The magnetic moments of the two erbium sites are 6.9μ B and 4.3μ B at 5 K. An indication of further symmetry reduction of the magnetic structure from tetragonal to orthorhombic below 5 K is discussed.
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