Short-range magnetic correlations and spin dynamics in the paramagnetic regime of (Mn,Fe)2(P,Si)

Journal article (2016)

Authors

X.F. Miao RST/Fundamental Aspects of Materials and Energy - AS
L. Caron Max Planck Institute for Chemical Physics of Solids, 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
J. Cedervall Uppsala University
P.C.M. Gubbens RST/Fundamental Aspects of Materials and Energy - AS
P Dalmas de Réotier CEA Grenoble
A Yaouanc CEA Grenoble
F. Qian RST/Neutron and Positron Methods in Materials - AS
A. R. Wildes Institut Laue-Langevin
H. Luetkens Paul Scherrer Institut
A Amato Paul Scherrer Institut
Research Group
RST/Fundamental Aspects of Materials and Energy (AS) (TU Delft)
Copyright: © 2016 X.F. Miao, L. Caron, J. Cedervall, P.C.M. Gubbens, P. Dalmas De Réotier, A. Yaouanc, F. Qian, A. R. Wildes, H. Luetkens, A. Amato, N.H. van Dijk, E.H. Brück
DOI
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https://doi.org/10.1103/PhysRevB.94.014426
More Info
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Published Date

20-07-2016

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 spatial and temporal correlations of magnetic moments in the paramagnetic regime of (Mn,Fe)2(P,Si) have been investigated by means of polarized neutron diffraction and muon-spin relaxation techniques. Short-range magnetic correlations are present at temperatures far above the ferromagnetic transition temperature (TC). This leads to deviations of paramagnetic susceptibility from Curie-Weiss behavior. These short-range magnetic correlations extend in space, slow down with decreasing temperature, and finally develop into long-range magnetic order at TC.