Method of analysis of neutron polarization using noncentrosymmetric cubic helicoidal magnets

N.M. Chubova, V.A. Dyadkin, E.V. Moskvin, S.V. Grigoriev

Результат исследований: Научные публикации в периодических изданияхстатья

3 Цитирования (Scopus)

Выдержка

© 2014, Pleiades Publishing, Ltd. A new way of analyzing the polarization of thermal and cold neutron beams, based on the dependence of the neutron-scattering cross section on the neutron polarization upon diffraction from a magnetic spiral, is proposed. In this method, the working element of the neutron-polarization analyzer is a single-crystal noncentrosymmetric cubic helicoidal MnSi magnet, the spin spiral in which is formed at T <Tc (Tc = 29 K) in the magnetic-field range H <HC2 ∼ 500 mT. Since the spiral period d in MnSi is 180 Å, thermal and cold neutrons with wavelengths λ ≤ 2d diffract from this structure. It is established that the efficiency of neutron-polarization analysis is as high as 100% with the experimental geometry when the polarization vector P is parallel to the scattering vector Q.
Язык оригиналаанглийский
Страницы (с-по)1020-1026
ЖурналJournal of Surface Investigation X-Ray, Synchrotron and Neutron Techniques
Номер выпуска5
DOI
СостояниеОпубликовано - 2014

Отпечаток

Magnets
Neutrons
Polarization
Neutron beams
Neutron scattering
Diffraction
Single crystals
Scattering
Magnetic fields
Wavelength
Geometry
Hot Temperature

Цитировать

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title = "Method of analysis of neutron polarization using noncentrosymmetric cubic helicoidal magnets",
abstract = "{\circledC} 2014, Pleiades Publishing, Ltd. A new way of analyzing the polarization of thermal and cold neutron beams, based on the dependence of the neutron-scattering cross section on the neutron polarization upon diffraction from a magnetic spiral, is proposed. In this method, the working element of the neutron-polarization analyzer is a single-crystal noncentrosymmetric cubic helicoidal MnSi magnet, the spin spiral in which is formed at T <Tc (Tc = 29 K) in the magnetic-field range H <HC2 ∼ 500 mT. Since the spiral period d in MnSi is 180 {\AA}, thermal and cold neutrons with wavelengths λ ≤ 2d diffract from this structure. It is established that the efficiency of neutron-polarization analysis is as high as 100{\%} with the experimental geometry when the polarization vector P is parallel to the scattering vector Q.",
author = "N.M. Chubova and V.A. Dyadkin and E.V. Moskvin and S.V. Grigoriev",
year = "2014",
doi = "10.1134/S1027451014050267",
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journal = "Journal of Surface Investigation X-Ray, Synchrotron and Neutron Techniques",
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Method of analysis of neutron polarization using noncentrosymmetric cubic helicoidal magnets. / Chubova, N.M.; Dyadkin, V.A.; Moskvin, E.V.; Grigoriev, S.V.

В: Journal of Surface Investigation X-Ray, Synchrotron and Neutron Techniques, № 5, 2014, стр. 1020-1026.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Method of analysis of neutron polarization using noncentrosymmetric cubic helicoidal magnets

AU - Chubova, N.M.

AU - Dyadkin, V.A.

AU - Moskvin, E.V.

AU - Grigoriev, S.V.

PY - 2014

Y1 - 2014

N2 - © 2014, Pleiades Publishing, Ltd. A new way of analyzing the polarization of thermal and cold neutron beams, based on the dependence of the neutron-scattering cross section on the neutron polarization upon diffraction from a magnetic spiral, is proposed. In this method, the working element of the neutron-polarization analyzer is a single-crystal noncentrosymmetric cubic helicoidal MnSi magnet, the spin spiral in which is formed at T <Tc (Tc = 29 K) in the magnetic-field range H <HC2 ∼ 500 mT. Since the spiral period d in MnSi is 180 Å, thermal and cold neutrons with wavelengths λ ≤ 2d diffract from this structure. It is established that the efficiency of neutron-polarization analysis is as high as 100% with the experimental geometry when the polarization vector P is parallel to the scattering vector Q.

AB - © 2014, Pleiades Publishing, Ltd. A new way of analyzing the polarization of thermal and cold neutron beams, based on the dependence of the neutron-scattering cross section on the neutron polarization upon diffraction from a magnetic spiral, is proposed. In this method, the working element of the neutron-polarization analyzer is a single-crystal noncentrosymmetric cubic helicoidal MnSi magnet, the spin spiral in which is formed at T <Tc (Tc = 29 K) in the magnetic-field range H <HC2 ∼ 500 mT. Since the spiral period d in MnSi is 180 Å, thermal and cold neutrons with wavelengths λ ≤ 2d diffract from this structure. It is established that the efficiency of neutron-polarization analysis is as high as 100% with the experimental geometry when the polarization vector P is parallel to the scattering vector Q.

U2 - 10.1134/S1027451014050267

DO - 10.1134/S1027451014050267

M3 - Article

SP - 1020

EP - 1026

JO - Journal of Surface Investigation X-Ray, Synchrotron and Neutron Techniques

JF - Journal of Surface Investigation X-Ray, Synchrotron and Neutron Techniques

SN - 1027-4510

IS - 5

ER -