Skip Main Navigation Links ScienceDirect Logo Skip Main Navigation Links Register or Login: Password: Home Browse Search Forms My Alerts My Profile Help (Opens new window) Quick Search: within Quick Search searches abstracts, titles, and keywords. Click for more information. 28 of 70 Result List Previous Next Physica B: Condensed Matter Volumes 267-268 , June 1999, Pages 162-167 This Document SummaryPlus Full Text + Links PDF (266 K) ------------------------------------------------------------------------ Actions Cited By Save as Citation Alert Export Citation PII: S0921-4526(99)00014-9 Copyright © 1999 Published by Elsevier Science B.V. All rights reserved. Towards a 3D magnetometry by neutron reflectometry C. FermonCorresponding Author Contact Information <#m4.cor*>, E-mail The Corresponding Author , a <#orfa>, F. Ottb <#orfb>, B. Gillesc <#orfc>, A. Martyd <#orfd>, A. Menelleb <#orfb>, Y. Samsond <#orfd>, G. Legoffa <#orfa> and G. Francineta <#orfa> a DRECAM/SPEC CEA Saclay, 91191 Gif sur Yvette cedex, France b Laboratoire Léon Brillouin, CEA-CNRS 91191 Gif sur Yvette Cedex, France c LTPCM, ENSEEG, B.P. 75, 38 042 Grenoble, France d CEA-Grenoble, Département de Recherche Fondamentale sur la Matière Condensée/SP2M, 17 rue des Martyrs, 38 054 Grenoble Cedex 9, France Available online 10 January 2000. Abstract Specular polarised neutron reflectometry with polarisation analysis allows one to probe in-depth magnetic profiles of thin films (along the normal to the film). Off-specular reflectometry gives information about lateral structures (in the plane of the film) with typical lengthscales ranging from 5 to 100 small mu, Greekm. Furthermore, surface diffraction at grazing angle gives access to transverse dimensions between 10 nm and 300 nm with a resolution in that direction of a few nanometers. The combination of these three techniques applied to magnetic systems can lead to a 3D magnetic structure measurement. Such a technique is however not applicable to the study of a single magnetic dot, but it can generate unique results in several cases including patterns of domain walls in thin films with perpendicular anisotropy, arrays of magnetic dots, and patterned lines in magnetic thin films. Author Keywords: Magnetometry; Neutron reflectometry; Polarisation analysis PACS classification codes: 61.12 Ha; 75.70 Kw; 75.70.-i Article Outline 1. Introduction 2. General ideas 3. Non-specular neutron diffraction on periodic gratings 4. Diffraction on periodic magnetic stripe domains 5. Conclusion References Enlarge Image (7K) Fig. 1. Setup of the experiment. It is possible to study off-specular diffusion in the plane of incidence (along the "off-specular" line) and in the plane perpendicular to the plane of incidence (along the "surface diffraction" line). Enlarge Image (10K) Fig. 2. Diffraction map in the (qx, qz) plane on a grating of nickel lines (width 5 small mu, Greekm, periodicity 10 small mu, Greekm, thickness 90 nm) deposited on a glass substrate. The line qx=0 corresponds to the specular reflection, the other lines correspond to diffraction modes. Enlarge Image (11K) Fig. 3. Intensity of the diffracted modes +1 and -1 (triangles and squares) versus qz. Numerical fits are plotted in black lines. For clarity, the intensities of the mode -1 (resp. +1) have been divided by a factor of 100 (resp. 10 000). Enlarge Image (20K) Fig. 4. Diffraction geometry and off-specular diffusion signal measured on a network of magnetic domains using a multidetector (top pciture). The top peaks are the specular and off-specular peaks. The bottom signal is due to the refracted wave. The bottom picture is a MFM image of magnetic domains observed in the Fe0.5Pd0.5 thin films. Enlarge Image (8K) Fig. 5. Calculated off-specular signal as measured on a multidetector for two different incidence angles (a) straight theta, small theta, Greekinc=straight theta, small theta, Greekc=0.5° and (b) straight theta, small theta, Greekinc=0.7°. The peaks maximum does not move but the intensity decreases as soon as the incidence angle is moved away from the critical angle straight theta, small theta, Greekc. References 1. M.N. Baibich, J.M. Broto, A. Fert, F. Nguyen Van Dau, F. Petroff, P. Etienne, G. Creuzet, A. Friederich and J. Chazelas. Phys. Rev. Lett. 61 (1988), p. 2472. Abstract-INSPEC | $Order Document | Full Text via CrossRef 2. C.F. Majkrzak, J.W. Cable, J. Kwo, M. Hong, D.B. McWhan, Y. Yafet and J. Waszcak. Phys. Rev. Lett. 56 (1986), p. 2700. Abstract-INSPEC | $Order Document | Full Text via CrossRef 3. G.P. Felcher, R.O. Hilleke, R.K. Crawford, J. Haumann, R. Kleb and G. Ostrowski. Rev. Sci. Instr. 58 (1987), p. 609. Abstract-INSPEC | $Order Document | Full Text via CrossRef 4. S.J. Blundell and J.A.C. Bland. Phys. Rev. B 46 (1992), p. 3391. Abstract-INSPEC | $Order Document | Full Text via CrossRef 5. N.K. Pleshanov. Z. Phys. B 94 (1994), p. 233. Abstract-INSPEC | $Order Document 6. P. Bödeker, A. Hucht, A. Schreyer, J. Borchers, F. Güthoff and H. Zabel. Phys. Rev. Lett. 81 (1998), p. 914. Abstract-INSPEC | $Order Document | APS full text 7. C. Fermon, S. Gray, G. Legoff, V. Mathet, S. Mathieu, F. Ott, M. Viret and P. Warin. Physica B 241¯243 (1998), p. 1055. 8. L. Li. J. Opt. Soc. Am. A 13 (1996), p. 1024. Abstract-BIOTECHNOBASE | Abstract-Elsevier BIOBASE | Abstract-EMBASE | $Order Document 9. V. Gehanno, V.A. Marty, B. Gilles and Y. Samson. Phys. Rev. B 55 (1997), p. 12552. Abstract-INSPEC | $Order Document | APS full text | Full Text via CrossRef 10. A.L. Sukstanskii and K.L. Primak. J. Magn. Magn. Mater. 169 (1997), p. 31. Abstract | PDF (437 K) 11. Y. Yoneda. Phys. Rev. 131 (1963), p. 2010. Full Text via CrossRef 12. O.J. Guentert. J. Appl. Phys. 30 (1965), p. 1361. 13. A.N. Nigam. Phys. Rev. A 4 (1965), p. 1189. 14. S.K. Sinha, E.B. Sirota, S. Garoff and H.B. Stanley. Phys. Rev. B 38 (1988), p. 2297. Abstract-INSPEC | $Order Document | Full Text via CrossRef Corresponding Author Contact Information <#m4.bcor*> Corresponding author. Fax: 33-1-69-08-87-86; email: cfermon@cea.fr This Document SummaryPlus Full Text + Links PDF (266 K) ------------------------------------------------------------------------ Actions Cited By Save as Citation Alert Export Citation Physica B: Condensed Matter Volumes 267-268 , June 1999, Pages 162-167 28 of 70 Result List Previous Next Home Browse Search Forms My Alerts My Profile Help (Opens new window) ScienceDirect Logo 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 . 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