Transition metal substitution in Fe2P-based MnFe0.95P0.50Si0.50 magnetocaloric compounds

Journal article (2018)

Authors

Z. Ou RST/Fundamental Aspects of Materials and Energy - AS , Inner Mongolia Normal University China
H.D. Nguyen RST/Fundamental Aspects of Materials and Energy - AS , Hanoi University of Science and Technology
L. Zhang BASF Nederland B.V., RST/Fundamental Aspects of Materials and Energy - AS
L. Caron RST/Fundamental Aspects of Materials and Energy - AS , Max Planck Institute for Chemical Physics of Solids
E. Torun University of Luxembourg
N.H. van Dijk RST/Fundamental Aspects of Materials and Energy - AS
O Tegus Inner Mongolia Normal University China
E.H. Brück RST/Fundamental Aspects of Materials and Energy - AS
Research Group
RST/Fundamental Aspects of Materials and Energy (AS) (TU Delft)
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Published Date

2018

Language

English

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Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Fundamental Aspects of Materials and Energy

Abstract

The crystal structure, magnetic and magnetocaloric properties of (Mn,Fe,T)1.95P0.50Si0.50 (T = Co, Ni and Cu) compounds have been investigated. All the compounds crystallize in the Fe2P-type hexagonal structure. All these transition metal substitutions for either Mn(3g) or Fe(3f) weaken the ferromagnetic ordering, while showing complex effects on the energy barrier for nucleation in the first-order magnetic phase transition and result in complex behaviors in thermal/magnetic hysteresis. A first-principles density functional theory calculations show that Co, Ni and Cu atoms occupy 3f, 3f and 3g sites, respectively.

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