Polarized Neutron Diffraction Study of the Spin Structure of Mn<SUB>3</SUB>Sn

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  • Polarized Neutron Diffraction Study of the Spin Structure of Mn3Sn
  • Polarized Neutron Diffraction Study of

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Abstract

The magnetic structure of a weak ferromagnetic Mn3Sn has been studied by polarized neutron diffraction at room temperature. Large flipping ratios were observed for the 100 and 110 reflections under application of a magnetic field in the c-plane perpendicular to the scattering vector. The spin structure deduced from the h0l and hhl reflections has a triangular configuration but the spin plane is not determined. For applied field parallel to [010] the spin-A is parallel to [010], but for applied field parallel to [\bar110] the spin-B is antiparallel to [\bar110]. The magnetic form factor of the Mn atom agrees with the calculated Mn2+ form factor and the magnetic moment is 1.78 μB/Mn.

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