Local magnetic cluster size identified by neutron total scattering in the site-diluted spin glass S nx F e4-x N (x=0.88)

Yuanpeng Zhang; Tanja Scholz; Richard Dronskowski; Marshall T. McDonnell; Matthew G. Tucker

doi:10.1103/PhysRevB.100.014419

Local magnetic cluster size identified by neutron total scattering in the site-diluted spin glass S nx F e4-x N (x=0.88)

Yuanpeng Zhang, Tanja Scholz, Richard Dronskowski, Marshall T. McDonnell, Matthew G. Tucker

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12 Scopus citations

Abstract

A detailed structure analysis for the site-diluted SnxFe4-xN (x=0.25, 0.41, and 0.88) has been carried out through complex modeling of the neutron total scattering data. We present quantitative evidence showing the local ferromagnetic cluster size extending to ∼8 Å on average when Sn0.88Fe3.12N undergoes the spin-glass transition (the other two not showing such a transition). The modeling methodology used in this work involving the corefinement of the nuclear and magnetic structure in both real and reciprocal space can potentially be applied generally to explore a variety of spin-glass material problems.

Original language	English
Article number	014419
Journal	Physical Review B
Volume	100
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.100.014419
State	Published - Jul 16 2019

Funding

The research at ORNL's Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy (DOE). The financial support by Deutsche Forschungsgemeinschaft and RWTH Graduiertenförderung (scholarship to T. Scholz) is gratefully acknowledged. We also want to thank Dr. Benjamin Frandsen for the help on the nuclear and magnetic PDF corefinement with the DiffPy-CMI framework. This work has been partially supported by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the US Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doepublic-access-plan ).

Funders	Funder number
Office of Basic Energy Sciences
Scientific User Facilities Division
US Department of Energy
UT-Battelle, LLC
U.S. Department of Energy
Oak Ridge National Laboratory
Deutsche Forschungsgemeinschaft

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10.1103/PhysRevB.100.014419

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title = "Local magnetic cluster size identified by neutron total scattering in the site-diluted spin glass S nx F e4-x N (x=0.88)",

abstract = "A detailed structure analysis for the site-diluted SnxFe4-xN (x=0.25, 0.41, and 0.88) has been carried out through complex modeling of the neutron total scattering data. We present quantitative evidence showing the local ferromagnetic cluster size extending to ∼8 {\AA} on average when Sn0.88Fe3.12N undergoes the spin-glass transition (the other two not showing such a transition). The modeling methodology used in this work involving the corefinement of the nuclear and magnetic structure in both real and reciprocal space can potentially be applied generally to explore a variety of spin-glass material problems.",

author = "Yuanpeng Zhang and Tanja Scholz and Richard Dronskowski and McDonnell, {Marshall T.} and Tucker, {Matthew G.}",

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AU - Dronskowski, Richard

AU - McDonnell, Marshall T.

AU - Tucker, Matthew G.

PY - 2019/7/16

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N2 - A detailed structure analysis for the site-diluted SnxFe4-xN (x=0.25, 0.41, and 0.88) has been carried out through complex modeling of the neutron total scattering data. We present quantitative evidence showing the local ferromagnetic cluster size extending to ∼8 Å on average when Sn0.88Fe3.12N undergoes the spin-glass transition (the other two not showing such a transition). The modeling methodology used in this work involving the corefinement of the nuclear and magnetic structure in both real and reciprocal space can potentially be applied generally to explore a variety of spin-glass material problems.

AB - A detailed structure analysis for the site-diluted SnxFe4-xN (x=0.25, 0.41, and 0.88) has been carried out through complex modeling of the neutron total scattering data. We present quantitative evidence showing the local ferromagnetic cluster size extending to ∼8 Å on average when Sn0.88Fe3.12N undergoes the spin-glass transition (the other two not showing such a transition). The modeling methodology used in this work involving the corefinement of the nuclear and magnetic structure in both real and reciprocal space can potentially be applied generally to explore a variety of spin-glass material problems.

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Local magnetic cluster size identified by neutron total scattering in the site-diluted spin glass S nx F e4-x N (x=0.88)

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