2005 Volume 74 Issue 2 Pages 731-734
Detailed neutron diffraction measurements were performed on a single crystalline sample of Er11B2C2. We observed magnetic diffuse scattering, which consists of three components, just above the transition temperatures. This scattering is also observed in anomalous antiferroquadrupolar ordering compounds,TbB2C2 and HoB2C2. The results of the experiments indicate that the antiferroquadrupolar interaction is not essential for the origin of the magnetic diffuse scattering.
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