Tuning the magneto-elastic transition of (Mn,Fe,V)2(P,Si) alloys to low magnetic field applications

Journal article (2020)

Authors

J. Lai RST/Fundamental Aspects of Materials and Energy - AS
X. You RST/Fundamental Aspects of Materials and Energy - AS
A.I. Dugulan RID/TS/Instrumenten groep , RST/Fundamental Aspects of Materials and Energy - AS
B. Huang RST/Fundamental Aspects of Materials and Energy - AS , QRD/Kouwenhoven Lab - QuTech Advanced Research Centre
J. Liu RST/Fundamental Aspects of Materials and Energy - AS
M. Maschek RST/Fundamental Aspects of Materials and Energy - AS
L. van Eijck RST/Neutron and Positron Methods in Materials - AS , RST/Fundamental Aspects of Materials and Energy - AS
N.H. van Dijk RST/Fundamental Aspects of Materials and Energy - AS
E.H. Brück RST/Fundamental Aspects of Materials and Energy - AS
Research Group
RST/Fundamental Aspects of Materials and Energy (AS) (TU Delft)
Copyright: © 2020 J. Lai, X. You, A.I. Dugulan, B. Huang, J. Liu, M. Maschek, L. van Eijck, N.H. van Dijk, E.H. Brück
DOI: https://doi.org/10.1016/j.jallcom.2019.153451
More Info
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Published Date

2020

Language

English

Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Fundamental Aspects of Materials and Energy

Abstract

The first-order magneto-elastic transition in the Mn–Fe–P–Si alloys can be tailored by vanadium substitution. Alloys with a suitable V substitution provide an excellent magnetocaloric effect with minor hysteresis in low magnetic fields up to 1.2 T. Mössbauer measurements show that the hyperfine field is reduced by V substitution. Neutron diffraction reveals that Fe is substituted by V on the 3f site and the magnetic moment on the 3f site is enhanced by the V substitution. The modified magnetic exchange field around the 3f and 3g positions in the lattice can be utilized to design suitable magnetocaloric materials that operate in low magnetic fields.