ScienceDirect - Journal of Magnetism and Magnetic Materials: Magnetic neutron off-specular scattering for the direct determination of the coupling angle in exchange-coupled multilayers

Magnetic neutron off-specular scattering for the direct determination of the coupling angle in exchange-coupled multilayers

Abstract

Article Outline

References

Quick Search: within

225 of 374

	This document
		SummaryPlus
		Article
		Journal Format-PDF (159 K)

	Actions
		Cited By
		Save as Citation Alert
		Export Citation

Journal of Magnetism and Magnetic Materials

Volumes 226-230, Part 2
May 2001
Pages 1694-1696

DOI: 10.1016/S0304-8853(00)00758-7
PII: S0304-8853(00)00758-7
Copyright © 2001 Elsevier Science B.V. All rights reserved.

V. Lauter-Pasyuk ^,^,^a^,^b, H. J. Lauter^c, B. Toperverg^c^,^d, O. Nikonov^b^,^c, E. Kravtsov^e, L. Romashev^e and V. Ustinov^e

^a TU München, Physik Department, D-85747 Garching, Germany
^b Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia
^c Institut Laue Langevin, B.P. 156, F-38042, Grenoble Cedex 9, France
^d PNPI, 188450, Gatchina, St. Petersburg, Russia
^e Institute of Metal Physics, 62019 Ekaterinburg, Russia

Available online 14 November 2001.

A new method is presented for the direct determination of the coupling angle in magnetic exchange multilayers. Strong anomalies in the off-specular neutron spin_¯flip scattering intensity at critical angles give a new tool, which is tested with Fe/Cr multilayers. In addition, a complete two-dimensional data analysis of specular reflection and off-specular scattering has been employed to verify atomic spin correlation in Fe/Cr multilayers, a typical system showing the GMR effect.

Author Keywords: Polarized neutron reflection; Thin film_¯¯multilayers; Non-collinear exchange coupling

References

(42K)
Fig. 1. Experimental intensity map of specular and off-specular scattered neutrons from ⁵⁷Fe/Cr multilayer as a function of _in and _f, the incident and outgoing scattering angles, respectively: (a) for "+" and (b) for "-"-spin state at H=0.428 kOe; (c) for "+"-spin state at H=1.59 kOe (a')_¯(c') are the corresponding calculations [4]. Top row schemes: (left and right) layer magnetic moment arrangement for H=0.428 and 1.59 kOe, respectively; (middle) schematic presentation of the Fe/Cr multilayer with two idealized domains in a magnetic field H and the scattering geometry with the orientation of neutron polarization.

Subject View:

1. D.T. Pierce, J. Unguris, R.J. Celotta and M.D. Stiles. J. Magn. Magn. Mater. 200 (1999), p. 290. SummaryPlus | Article | Journal Format-PDF (1557 K)

2. J.A.C. Bland, B. Heinrich, Ultrathin Magnetic Structures, Springer, Vols. I and II, Berlin, 1994.

3. J.F. Ankner and G.P. Felcher. J. Magn. Magn. Mater. 200 (1999), p. 741. SummaryPlus | Article | Journal Format-PDF (739 K)

4. V. Lauter-Pasyuk, H.J. Lauter, B. Toperverg, O. Nikonov, E. Kravtsov, M. Milyaev, L. Romashev and V. Ustinov. Physica B 283 (2000), p. 194. SummaryPlus | Article | Journal Format-PDF (434 K)

5. B.P. Toperverg, A. Rühm, W. Donner and H. Dosch. Physica B 267 (1999), p. 198. SummaryPlus | Article | Journal Format-PDF (522 K)

Corresponding author. Present adddress: Institut Laue Langevin, B.P. 156, F-38042, Grenoble Cedex 9, France. Tel.: +33-4-76-20-75-56; fax: +33-4-76-20-71-20; email: vlauter@ill.fr

This document

SummaryPlus

Article

Journal Format-PDF (159 K)

Actions

Cited By

Save as Citation Alert

Export Citation

Journal of Magnetism and Magnetic Materials
Volumes 226-230, Part 2
May 2001
Pages 1694-1696

225 of 374

Send feedback to ScienceDirect
Software and compilation © 2002 ScienceDirect. All rights reserved.
ScienceDirect® is an Elsevier Science B.V. registered trademark.

Your use of this service is governed by Terms and Conditions. Please review our Privacy Policy for details on how we protect information that you supply.