Magnetic Properties of Non-Stoichiometric RNi2Mnx (R = Tb, Dy) Compounds

N.V. Mushnikov; V.S. Gaviko; E.G. Gerasimov; P.B. Terentyev; I.A. Tkach; A.V. Korolyov

doi:10.4028/www.scientific.net/SSP.168-169.200

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HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169Magnetic Properties of Non-Stoichiometric RNi2Mnx...

Magnetic Properties of Non-Stoichiometric RNi₂Mn_x (R = Tb, Dy) Compounds

Abstract:

Structure and magnetic properties of non-stoichiometric rare earth intermetallic compounds TbNi2Mnx and DyNi2Mnx x have been studied. It was found that for the compositions with x ≤ 1 the alloys retain the single-phase cubic structure despite the fact that the rare earth-to-3d metal ratio changes from 1:2 to 1:3. Magnetic measurements revealed that the Mn alloying leads to a substantial growth of the Curie temperature with a maximum at x ~ 0.5. At low temperatures the magnetization reversal of the Mn-containing samples is characterized by a considerable hysteresis caused by pinning of narrow domain walls by the structure defects. The observed experimental data are discussed within the assumption on a local distortion of the crystal electric field and the formation of a non-collinear magnetic structure of the rare earth sublattice.

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Solid State Phenomena (Volumes 168-169)

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200-203

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.168-169.200

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Online since:

December 2010

Authors:

N.V. Mushnikov, V.S. Gaviko, E.G. Gerasimov, P.B. Terentyev, I.A. Tkach, A.V. Korolyov

Keywords:

Coercivity, Curie Temperature, Intermetallic, Magnetisation, Stoichiometry, Structure

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