Magnetic order of YNi4Si-type TbNi4Si

Magnetic order of YNi4Si-type TbNi4Si

Magnetic measurements and neutron powder diffraction investigation of the magnetic structure of the YNi4Si-type TbNi4Si compound are presented. The magnetocaloric effect of TbNi4Si is calculated in terms of the isothermal magnetic entropy change and it reaches the maximum value of –6.3J/kgK for a fi...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2014-11, Vol.368, p.121-125
Hauptverfasser: Morozkin, A.V., Yuan, Fang, Mozharivskyj, Y., Isnard, O.
Format: Artikel
Sprache:eng
Schlagworte:
Magnetic property
Magnetic structure
Magnetocaloric effect
Neutron diffraction
Physics
Rare-earth compound
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Zusammenfassung:Magnetic measurements and neutron powder diffraction investigation of the magnetic structure of the YNi4Si-type TbNi4Si compound are presented. The magnetocaloric effect of TbNi4Si is calculated in terms of the isothermal magnetic entropy change and it reaches the maximum value of –6.3J/kgK for a field change of 0–50kOe near TC of ~37K. Below ~37K and in a zero applied magnetic field, TbNi4Si exhibits a commensurate b-axis collinear ferromagnetic ordering with the Cmm′m magnetic space group. At 1.5K, the terbium magnetic moment reaches the value of 8.66(6)μB. •Below ~37K the YNi4Si-type TbNi4Si shows a ferromagnetic ordering.•MCE of TbNi4Si reaches value of –6.3J/kgK in 0–50kOe near Curie point.•TbNi4Si exhibits b-axis ferromagnetic order with the Cmm′m magnetic space group.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2014.04.057