Ordering in magnetic multilayers by off-specular neutron scattering

V. Lauter-Pasyuk, H. J. Lauter, B. Toperverg, L. Romashev, M. Milyaev, A. Petrenko, V. Aksenov, V. Ustinov

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The combination of specular reflection and off-specular scattering with polarized neutrons gives a unique detailed information on the lateral and transverse spin-configuration of a magnetic multilayer stack. We present the first direct experimental observation of a phenomenon predicted theoretically for antiferromagnetically coupled multilayers: the twisted ground-state configuration in an external magnetic field. This twisted configuration arises due to the reduced symmetry of magnetic moments of the end layers having only one neighbor. This fact can be established directly via the qualitative analysis of the line shape of the superstructure peaks on the specular line and the related off-specular Bragg sheet. Additional quantitative evaluation of both specular reflection and off-specular scattering allows one to deduce the layer-by-layer spin configuration through the multilayer stack, as well as within the plane of the layer. The presence of spin-flip off-specular scattering means that the layer magnetization is laterally not homogeneous but is decomposed into a set of domains. The distribution of magnetic moments within each domain, the domains size and their distributions are obtained.

Original languageEnglish
Pages (from-to)382-387
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume258-259
DOIs
Publication statusPublished - Mar 2003

Fingerprint

Magnetic multilayers
Neutron scattering
neutron scattering
Scattering
Magnetic moments
Multilayers
specular reflection
configurations
Ground state
magnetic moments
scattering
Magnetization
Neutrons
Magnetic fields
qualitative analysis
line shape
neutrons
magnetization
ground state
evaluation

Keywords

  • Exchange coupling - non-collinear
  • Neutron reflection - polarized
  • Thin film - multilayers

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Lauter-Pasyuk, V., Lauter, H. J., Toperverg, B., Romashev, L., Milyaev, M., Petrenko, A., ... Ustinov, V. (2003). Ordering in magnetic multilayers by off-specular neutron scattering. Journal of Magnetism and Magnetic Materials, 258-259, 382-387. https://doi.org/10.1016/S0304-8853(02)01118-6

Ordering in magnetic multilayers by off-specular neutron scattering. / Lauter-Pasyuk, V.; Lauter, H. J.; Toperverg, B.; Romashev, L.; Milyaev, M.; Petrenko, A.; Aksenov, V.; Ustinov, V.

In: Journal of Magnetism and Magnetic Materials, Vol. 258-259, 03.2003, p. 382-387.

Research output: Contribution to journalArticle

Lauter-Pasyuk, V, Lauter, HJ, Toperverg, B, Romashev, L, Milyaev, M, Petrenko, A, Aksenov, V & Ustinov, V 2003, 'Ordering in magnetic multilayers by off-specular neutron scattering', Journal of Magnetism and Magnetic Materials, vol. 258-259, pp. 382-387. https://doi.org/10.1016/S0304-8853(02)01118-6
Lauter-Pasyuk V, Lauter HJ, Toperverg B, Romashev L, Milyaev M, Petrenko A et al. Ordering in magnetic multilayers by off-specular neutron scattering. Journal of Magnetism and Magnetic Materials. 2003 Mar;258-259:382-387. https://doi.org/10.1016/S0304-8853(02)01118-6
Lauter-Pasyuk, V. ; Lauter, H. J. ; Toperverg, B. ; Romashev, L. ; Milyaev, M. ; Petrenko, A. ; Aksenov, V. ; Ustinov, V. / Ordering in magnetic multilayers by off-specular neutron scattering. In: Journal of Magnetism and Magnetic Materials. 2003 ; Vol. 258-259. pp. 382-387.
@article{de3e5b0d499240fe89a24c5d7be5ec39,
title = "Ordering in magnetic multilayers by off-specular neutron scattering",
abstract = "The combination of specular reflection and off-specular scattering with polarized neutrons gives a unique detailed information on the lateral and transverse spin-configuration of a magnetic multilayer stack. We present the first direct experimental observation of a phenomenon predicted theoretically for antiferromagnetically coupled multilayers: the twisted ground-state configuration in an external magnetic field. This twisted configuration arises due to the reduced symmetry of magnetic moments of the end layers having only one neighbor. This fact can be established directly via the qualitative analysis of the line shape of the superstructure peaks on the specular line and the related off-specular Bragg sheet. Additional quantitative evaluation of both specular reflection and off-specular scattering allows one to deduce the layer-by-layer spin configuration through the multilayer stack, as well as within the plane of the layer. The presence of spin-flip off-specular scattering means that the layer magnetization is laterally not homogeneous but is decomposed into a set of domains. The distribution of magnetic moments within each domain, the domains size and their distributions are obtained.",
keywords = "Exchange coupling - non-collinear, Neutron reflection - polarized, Thin film - multilayers",
author = "V. Lauter-Pasyuk and Lauter, {H. J.} and B. Toperverg and L. Romashev and M. Milyaev and A. Petrenko and V. Aksenov and V. Ustinov",
year = "2003",
month = "3",
doi = "10.1016/S0304-8853(02)01118-6",
language = "English",
volume = "258-259",
pages = "382--387",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",

}

TY - JOUR

T1 - Ordering in magnetic multilayers by off-specular neutron scattering

AU - Lauter-Pasyuk, V.

AU - Lauter, H. J.

AU - Toperverg, B.

AU - Romashev, L.

AU - Milyaev, M.

AU - Petrenko, A.

AU - Aksenov, V.

AU - Ustinov, V.

PY - 2003/3

Y1 - 2003/3

N2 - The combination of specular reflection and off-specular scattering with polarized neutrons gives a unique detailed information on the lateral and transverse spin-configuration of a magnetic multilayer stack. We present the first direct experimental observation of a phenomenon predicted theoretically for antiferromagnetically coupled multilayers: the twisted ground-state configuration in an external magnetic field. This twisted configuration arises due to the reduced symmetry of magnetic moments of the end layers having only one neighbor. This fact can be established directly via the qualitative analysis of the line shape of the superstructure peaks on the specular line and the related off-specular Bragg sheet. Additional quantitative evaluation of both specular reflection and off-specular scattering allows one to deduce the layer-by-layer spin configuration through the multilayer stack, as well as within the plane of the layer. The presence of spin-flip off-specular scattering means that the layer magnetization is laterally not homogeneous but is decomposed into a set of domains. The distribution of magnetic moments within each domain, the domains size and their distributions are obtained.

AB - The combination of specular reflection and off-specular scattering with polarized neutrons gives a unique detailed information on the lateral and transverse spin-configuration of a magnetic multilayer stack. We present the first direct experimental observation of a phenomenon predicted theoretically for antiferromagnetically coupled multilayers: the twisted ground-state configuration in an external magnetic field. This twisted configuration arises due to the reduced symmetry of magnetic moments of the end layers having only one neighbor. This fact can be established directly via the qualitative analysis of the line shape of the superstructure peaks on the specular line and the related off-specular Bragg sheet. Additional quantitative evaluation of both specular reflection and off-specular scattering allows one to deduce the layer-by-layer spin configuration through the multilayer stack, as well as within the plane of the layer. The presence of spin-flip off-specular scattering means that the layer magnetization is laterally not homogeneous but is decomposed into a set of domains. The distribution of magnetic moments within each domain, the domains size and their distributions are obtained.

KW - Exchange coupling - non-collinear

KW - Neutron reflection - polarized

KW - Thin film - multilayers

UR - http://www.scopus.com/inward/record.url?scp=0037335599&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037335599&partnerID=8YFLogxK

U2 - 10.1016/S0304-8853(02)01118-6

DO - 10.1016/S0304-8853(02)01118-6

M3 - Article

AN - SCOPUS:0037335599

VL - 258-259

SP - 382

EP - 387

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -