Tuning the magnetoelastic transition in (Mn, Fe)2(P, Si) by B, C, and N doping. (November 2016)

• Record Type: Journal Article
• Authors: Miao, X.F.; Thang, N.V.; Caron, L.; Yibole, H.; Smith, R.I.; van Dijk, N.H.; Brück, E.
• Is Part Of: Scripta materialia. Volume 124(2016)
• Page Start: 129
• Page End: 132
• Publication Date: 2016-11
• Subjects: Magnetocaloric effect -- Magnetoelastic transition -- Neutron diffraction -- Phase transformations -- Transition metals; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.07.015
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The critical temperature and first-order character of the magnetoelastic transition in (Mn, Fe)2 (P, Si) are tunable by doping the structure with B, C and N atoms. Neutron diffraction experiments reveal that B substitutes Si on the 1 b site of the hexagonal P-62m structure, C occupies the interstitial 6 j and 6 k sites, while N distributes on both the 1 b and interstitial 6 j and 6 k sites. The tuning mechanism has been discussed in terms of the subtle variations in electronic configuration around the Fe atoms, which can be used to tailor the magnetoelastic transition. Graphical abstract: