Probing magnetic correlations with spin-echo modulated small angle neutron scattering (SEMSANS)

Journal article (2021)

Authors

Fankang Li Oak Ridge National Laboratory
Nina J. Steinke Institut Laue Langevin
Robert M. Dalgliesh ISIS Neutron and Muon Source
Adam Washington ISIS Neutron and Muon Source
Jiazhou Shen Indiana University - Purdue University
Roger Pynn Indiana University - Purdue University, Oak Ridge National Laboratory
S.R. Parnell RID/TS/Instrumenten groep
Research Group
RID/TS/Instrumenten groep
Copyright: © 2021 Fankang Li, Nina J. Steinke, Robert M. Dalgliesh, Adam L. Washington, Jiazhou Shen, Roger Pynn, S.R. Parnell
DOI: https://doi.org/10.1016/j.nima.2021.165705
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Published Date

2021

Language

English

Research Group

RID/TS/Instrumenten groep

Abstract

The first measurements of magnetic correlation functions are presented using time-of-flight Spin-echo modulated small angle neutron scattering (SEMSANS) on the Larmor instrument at the ISIS pulsed neutron source. The accessible length scale is beyond that of the conventional SANS. A simplified model is presented to calculate the expected correlation functions for various magnetisation fields applied to the sample. As an example, we present the experimental data of a soft iron sample at various configurations of magnetisation field.