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

Abstract:

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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.

Info:

Periodical:

Solid State Phenomena (Volumes 168-169)

Main Theme:

Edited by:

V. Ustinov

Pages:

200-203

DOI:

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

Citation:

N.V. Mushnikov et al., "Magnetic Properties of Non-Stoichiometric RNi2Mnx (R = Tb, Dy) Compounds", Solid State Phenomena, Vols. 168-169, pp. 200-203, 2011

Online since:

December 2010

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Price:

$35.00

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