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

Li, Fankang; Steinke, Nina J.; Dalgliesh, Robert M.; Washington, Adam L.; Shen, Jiazhou; Pynn, Roger; Parnell, S.R.

doi:10.1016/j.nima.2021.165705

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

Title

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

Author

Li, Fankang (Oak Ridge National Laboratory)
Steinke, Nina J. (Institut Laue-Langevin)
Dalgliesh, Robert M. (ISIS Facility)
Washington, Adam L. (ISIS Facility)
Shen, Jiazhou (Indiana University - Purdue University)
Pynn, Roger (Oak Ridge National Laboratory; Indiana University - Purdue University)
Parnell, S.R. (TU Delft RID/TS/Instrumenten groep)

Date

2021

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.

Subject

Magnetic Wollaston (MWP)
Magnetism
Neutron
Neutron spin echo
Small angle scattering

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http://resolver.tudelft.nl/uuid:abc6edbc-4f5e-4f10-bd46-4045b38a1819

DOI

https://doi.org/10.1016/j.nima.2021.165705

ISSN

0168-9002

Source

Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1014

Part of collection

Institutional Repository