Physica B: Condensed Matter
Volume 356, Issues 1-4
,
15 February 2005,
Pages 51-55
Proceedings of the Fifth International Workshop on Polarised Neutrons in Condensed Matter Investigations
doi:10.1016/j.physb.2004.10.045 
Copyright © 2004 Elsevier B.V. All rights reserved.
Grazing incidence neutron diffraction from ferromagnetic films in multi-domain state
B.P. Toperverga, b, V.V. Lauter-Pasyukc, d, 
, 
, H.J. Lautera and A. Vorobieva, b, e
aInstitut Laue Langevin, B.P. 156, Grenoble 38000, France
bPetersburg Nuclear Physics Institute, 188300 Gatchina, St. Petersburg, Russia
cTU München, Physics Department, D-85747 Garching, Germany
dJoint Institute for Nuclear Research, Dubna, Moscow Region, Russia
eMax-Planck-Institut für Metallforschung, Stuttgart, D-70569, Germany
Available online 15 December 2004.
Abstract
Bragg diffraction at grazing incidence of neutrons from a magnetic film decomposed into a set of ferromagnetic domains is considered within the frame of the distorted wave Born approximation. It is shown that the diffracted intensity measured as a function of angles of incidence and exit in the direction normal to the surface can provide information on the lateral distribution of domain magnetization. Theoretical results are illustrated by measurements of a mono-crystalline film of iron.
Keywords: Neutron reflectometry; Grazing incidence diffraction
PACS: 1.12.Ha; 75.60.Ej; 75.75.+a
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Fig. 1. GIND kinematics: (a) 3D view; (b) top view. The scattering angle of the (110) reflection is
85.6
and not
90, as it is drawn in the figure for simplicity.
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Fig. 2. Intensity distribution map for GIND from 2500
thick Fe film on MgO substrate calculated in accordance with Eqs. (
1) and (
2) with a fine resolution.
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Fig. 3. The same intensity map as in
Fig. 2 smeared over the actual resolution of the EVA reflecto-diffractometer.
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Fig. 4. Experimentally measured intensity distribution map for the same conditions as in
Fig. 3.
References
[1] H. Dosch, Physica B 192 (1993), p. 163. Abstract | Abstract + References | PDF (858 K)
R. Günther et al., Physica B 234 (1997), p. 508.
[2] R. Günther, W. Donner, B.P. Toperverg and H. Dosch, Phys. Rev. Lett. 81 (1998), p. 116.
[3] V. Lauter-Pasyuk, H.J. Lauter, B.P. Toperverg, L. Romashev and V. Ustinov, Phys. Rev. Lett. 89 (2002), p. 127203.
[4] S.G.E. te Velthuis, J.S. Jiang, S.D. Bader, G.P. Felcher, Phys. Rev. Lett. (2002).
[5] B.P. Toperverg, Physica B 279 (2001), p. 160. SummaryPlus | Full Text + Links | PDF (142 K)
B.P. Toperverg, Physica B 335 (2003), p. 174. Abstract | PDF (167 K)
B.P. Toperverg, in: Polarized Neutron Scattering, Forschungszentrum Jülich, Series “Matter and Materials”, vol. 12, 2002, p. 275.
[6] EVA, www.ill.fr.
Corresponding author. Institute Laue Langevin, B.P. 156, Grenoble Cedex 9 38042, France. Tel.: +33 4 76 20 75 56; fax: +33 4 76 20 71 20.
