Polarized Neutron Diffraction Study on the Electronic State of MnSb

概要

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MnSb, which is a ferromagnet with NiAs type crystal structure, is investigatedby using the polarized neutron diffraction technique. Precise measurements of themagnetic structure factors give the following results : (i) The magnetic formfactor of Mn on high angle reflections, which is sensitive to the asphericity of37-wave function, gives the unpaired electron population to be (0.89, 1.61, 1.22)for (p.., y..., p.j) orbitals, respectively. These facts indicate that MnSb should beunderstood with a well overlapped 3#-subbands model proposed in the bandcalculation on NiS rather than the broadened 3#-level model proposed forMnAs(P) system. (11) 3J-electron number of Mn is found to be four in MnSbon the basis of the asphericity of the magnetic form factor in conformity withthe band calculation. (iii) Sb is magnetically polarized with moment of about 0.2p. antiparallel to the total magnetization.
社団法人日本物理学会の論文
1978-09-15