Structural and magnetic properties of Fe2P-type R6TTe2 compounds (R = Tb, Dy, Ho, Er, T = Fe, Co, Ru): Magnetic properties and specific features of magnetic entropy change

• Published in: Journal of solid state chemistry Vol. 258; pp. 201 - 211
• Main Authors: Morozkin, A.V., Genchel, V.K., Knotko, A.V., Yapaskurt, V.O., Yao, Jinlei, Quezado, S., Malik, S.K.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.02.2018
• Subjects: Heat capacity; Magnetic entropy change; Magnetic properties; Magnetocaloric effect; Rare earth compounds; Heat capacity; Magnetic entropy change; Rare earth compounds; Magnetocaloric effect; Magnetic properties
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/j.jssc.2017.10.023

The magnetic properties and magnetic entropy changes of the Fe2P-type Ho6FeTe2, Ho6CoTe2, Er6CoTe2, Tb6RuTe2, Dy6RuTe2 and Ho6RuTe2 (space group P-62m, N 189, hP9) have been studied by means of bulk magnetization and heat capacity measurements. Also, the tentative magnetic entropy change ΔSm* = (∂M / ∂T) × H was used for characterization of magnetic ordering. Ho6FeTe2, Ho6CoTe2, Er6CoTe2, Tb6RuTe2, Dy6RuTe2 and Ho6RuTe2 exhibit complex field sensitive ferro-antiferromagnetic ordering. The correlation between the isothermal magnetic entropy change and the magnetic ordering of these compounds have been studied. The magnetic properties and magnetic entropy changes of the Fe2P-type Ho6FeTe2, Ho6CoTe2, Er6CoTe2, Tb6RuTe2, Dy6RuTe2 and Ho6RuTe2 (space group P-62m, N 189, hP9) have been studied by means of bulk magnetization and heat capacity measurements. Also, tentative magnetic entropy change ΔSm* = (∂M / ∂T) × H was used for characterization of magnetic ordering. Ho6FeTe2, Ho6CoTe2, Er6CoTe2, Tb6RuTe2, Dy6RuTe2 and Ho6RuTe2 exhibit complex field sensitive ferro-antiferromagnetic ordering. The correlationship of magnetic entropy change with magnetic ordering of these compounds was investigated and discussed. [Display omitted] •The bulk magnetization and heat capacity used for {Ho, Er}6CoTe2 and {Tb, Dy, Ho}6RuTe.•The tentative magnetic entropy change ΔSm* = (∂M / ∂T) × H used for magnetic ordering.•This permits to establish magnetic ordering in width interval of magnetic field.•{Ho, Er}6CoTe2 and {Tb, Dy, Ho}6RuTe exhibit field sensitive F-AF ordering.