Open AccessTriangular magnetic structure of the Mn3Sb compound
Author(s) -
В. С. Гончаров,
А.В. Труханов
Publication year - 2020
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ fìzìka-matèmatyčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2415
pISSN - 1561-2430
DOI - 10.29235/1561-2430-2020-56-2-232-238
Subject(s) - magnetic structure , neutron diffraction , antiferromagnetism , magnetic moment , equilateral triangle , manganese , metastability , magnetometer , crystallography , condensed matter physics , crystal structure , diffraction , chemistry , materials science , physics , magnetic field , magnetization , geometry , mathematics , organic chemistry , quantum mechanics , optics
The Mn 3 Sb metastable compound is formed at high pressure and temperature and it decomposes upon heating above 420 K into Mn 2 Sb and Mn. It has a cubic crystalline structure describing the Pm-3m (№ 221) space group with a lattice parameter of a = 0.400 nm. In the present work, according to the results of neutron diffraction investigations and taking into account magnetometry data, it is shown that Mn 3 Sb is an antiferromagnet, and a model of the magnetic structure with a triangular configuration of equal magnetic moments in magnitude is proposed. The magnetic moments of manganese atoms, constituting the basis of a unit magnetic cell, lie in the (111) plane and form an equilateral triangle. According to neutron diffraction data, the magnetic moments of manganese atoms were determined at different temperatures.