Short-range magnetic correlations and spin dynamics in the paramagnetic regime of (Mn,Fe)2(P,Si)
Xuefei Miao (TU Delft - RST/Fundamental Aspects of Materials and Energy)
L. Caron (Max Planck Institute for Chemical Physics of Solids, TU Delft - RST/Fundamental Aspects of Materials and Energy)
J. Cedervall (Uppsala University)
PCM Gubbens (TU Delft - RST/Fundamental Aspects of Materials and Energy)
P. Dalmas de Réotier (CEA Grenoble)
A Yaouanc (CEA Grenoble)
F. Qian (TU Delft - RST/Neutron and Positron Methods in Materials)
A. R. Wildes (Institut Laue Langevin)
H. Luetkens (Paul Scherrer Institut)
A Amato (Paul Scherrer Institut)
Niels van Dijk (TU Delft - RST/Fundamental Aspects of Materials and Energy)
EH Brück (TU Delft - RST/Fundamental Aspects of Materials and Energy)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
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.