Magnetooptic determination of the magnetic point group of Ca3Mn2Ge3O12
N. F. KharchenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences, Ukrainian SSR, KharkovV. V. EremenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences, Ukrainian SSR, KharkovS. L. GnatchenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences, Ukrainian SSR, KharkovA. MilnerPhysicotechnical Institute of Low Temperatures, Academy of Sciences, Ukrainian SSR, KharkovS. V. SofroneevPhysicotechnical Institute of Low Temperatures, Academy of Sciences, Ukrainian SSR, Kharkov
ABI
Аннотация
On the basis of measurements of the linear birefringence and dichroism due to the linear magnetooptic effect we have determined the magnetic point group for the noncollinear antiferroelectric crystal Ca3Mn2Ge3O12. The group obtained, 4̲/m, differs from the 4/m group obtained previously from neutron diffraction data.
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