Magnetic state and properties of the Fe0.5TiSe2 intercalation compound |
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| Authors: | N V Selezneva N V Baranov V G Pleshchev N V Mushnikov V I Maksimov |
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| Institution: | 1. Gorky Ural State University, pr. Lenina 51, Yekaterinburg, 620083, Russia
2. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. Sof’i Kovalevskoi 18, Yekaterinburg, 620219, Russia
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| Abstract: | The Fe0.5TiSe2 compound with a monoclinic crystal structure has been prepared by intercalation of Fe atoms between Se-Ti-Se sandwiches in the layered structure of TiSe2. The crystal and magnetic structures, electrical resistivity, and magnetization of the Fe0.5TiSe2 compound have been investigated. According to the neutron diffraction data, the Fe0.5TiSe2 compound has a tilted antiferromagnetic structure at temperatures below the Néel temperature of 135 K, in which the magnetic moments of Fe atoms are antiferromagnetically ordered inside layers and located at an angle of approximately 74.4° with respect to the layer plane. The magnetic moment of Fe atoms is equal to (2.98 ± 0.05)μB. The antiferromagnetic ordering is accompanied by anisotropic spontaneous magnetostrictive distortions of the crystal lattice, which is associated with the spin-orbit interaction and the effect of the crystal field. |
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