Magnetocrystalline anisotropy and the magnetocaloric effect in Fe${}_{2}$P

Magnetocrystalline anisotropy and the magnetocaloric effect in Fe $_{2}$ P

L. Caron, M. Hudl, V. Höglin, N. H. Dung, C. P. Gomez, M. Sahlberg, E. Brück, Y. Andersson, and P. Nordblad

Phys. Rev. B 88, 094440 – Published 30 September 2013

Abstract

Magnetic and magnetocaloric properties of high-purity, giant magnetocaloric polycrystalline and single-crystalline Fe $_{2}$ P are investigated. Fe $_{2}$ P displays a moderate magnetic entropy change, which spans over 70 K and the presence of strong magnetization anisotropy proves this system is not fully itinerant but displays a mix of itinerant and localized magnetism. The properties of pure Fe $_{2}$ P are compared to those of giant magnetocaloric (Fe,Mn) $_{2}$ (P, $A$ ) (where $A = As$ , Ge, Si) compounds helping understand the exceptional characteristics shown by the latter, which are so promising for heat pump and energy conversion applications.

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Received 15 October 2012

DOI:https://doi.org/10.1103/PhysRevB.88.094440

Authors & Affiliations

L. Caron^1,2,*, M. Hudl², V. Höglin³, N. H. Dung¹, C. P. Gomez³, M. Sahlberg³, E. Brück¹, Y. Andersson³, and P. Nordblad²

¹Fundamental Aspects of Materials and Energy, Faculty of Applied Sciences, TUDelft Mekelweg 15, 2629 JB Delft, The Netherlands
²Department of Engineering Sciences, Uppsala University, P.O. Box 534, SE-751 21 Uppsala, Sweden
³Department of Materials Chemistry, Uppsala University, P.O. Box 538, SE-751 21 Uppsala, Sweden

^*L.Caron@tudelft.nl

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Vol. 88, Iss. 9 — 1 September 2013

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