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Title: Local magnetic structure determination using polarized neutron holography

Abstract

A unique and important property of the neutron is that it possesses magnetic moment. This property is widely used for determination of magnetic structure of crystalline samples observing the magnetic components of the diffraction peaks. Investigations of diffraction patterns give information only about the averaged structure of a crystal but for discovering of local spin arrangement around a specific (e.g., impurity) nucleus remains still a challenging problem. Neutron holography is a useful tool to investigate the local structure around a specific nucleus embedded in a crystal lattice. The method has been successfully applied experimentally in several cases using non-magnetic short range interaction of the neutron and the nucleus. A mathematical model of the hologram using interaction between magnetic moment of the atom and the neutron spin for polarized neutron holography is provided. Validity of a polarized neutron holographic experiment is demonstrated by applying the proposed method on model systems.

Authors:
; ;  [1]
  1. Wigner Research Centre for Physics, Konkoly Thege M. út 29-33, H-1121 Budapest (Hungary)
Publication Date:
OSTI Identifier:
22410142
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL LATTICES; CRYSTALS; DIFFRACTION; HOLOGRAPHY; INTERACTION RANGE; MAGNETIC MOMENTS; MATHEMATICAL MODELS; NEUTRON DIFFRACTION; SPIN

Citation Formats

Szakál, Alex, E-mail: szakal.alex@wigner.mta.hu, Markó, Márton, E-mail: marko.marton@wigner.mta.hu, and Cser, László, E-mail: cser.laszlo@wigner.mta.hu. Local magnetic structure determination using polarized neutron holography. United States: N. p., 2015. Web. doi:10.1063/1.4918778.
Szakál, Alex, E-mail: szakal.alex@wigner.mta.hu, Markó, Márton, E-mail: marko.marton@wigner.mta.hu, & Cser, László, E-mail: cser.laszlo@wigner.mta.hu. Local magnetic structure determination using polarized neutron holography. United States. doi:10.1063/1.4918778.
Szakál, Alex, E-mail: szakal.alex@wigner.mta.hu, Markó, Márton, E-mail: marko.marton@wigner.mta.hu, and Cser, László, E-mail: cser.laszlo@wigner.mta.hu. Thu . "Local magnetic structure determination using polarized neutron holography". United States. doi:10.1063/1.4918778.
@article{osti_22410142,
title = {Local magnetic structure determination using polarized neutron holography},
author = {Szakál, Alex, E-mail: szakal.alex@wigner.mta.hu and Markó, Márton, E-mail: marko.marton@wigner.mta.hu and Cser, László, E-mail: cser.laszlo@wigner.mta.hu},
abstractNote = {A unique and important property of the neutron is that it possesses magnetic moment. This property is widely used for determination of magnetic structure of crystalline samples observing the magnetic components of the diffraction peaks. Investigations of diffraction patterns give information only about the averaged structure of a crystal but for discovering of local spin arrangement around a specific (e.g., impurity) nucleus remains still a challenging problem. Neutron holography is a useful tool to investigate the local structure around a specific nucleus embedded in a crystal lattice. The method has been successfully applied experimentally in several cases using non-magnetic short range interaction of the neutron and the nucleus. A mathematical model of the hologram using interaction between magnetic moment of the atom and the neutron spin for polarized neutron holography is provided. Validity of a polarized neutron holographic experiment is demonstrated by applying the proposed method on model systems.},
doi = {10.1063/1.4918778},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}