*Register * or Login: Password: Quick Search: within *12 of 56* *Physica B: Condensed Matter* Volume 357, Issues 1-2 , 28 February 2005, Pages 22-26 Proceedings of the 8th International Conference on Surface X-ray and Neutron Scattering This Document *SummaryPlus* Full Text + Links PDF (255 K) Actions Cited By Save as Citation Alert E-mail Article Export Citation doi:10.1016/j.physb.2004.11.014 Copyright © 2004 Elsevier B.V. All rights reserved. X-ray resonant magnetic scattering on noncollinearly coupled Fe/Cr superlattices * * *A. Nefedov^ <#cor1>^, ^ , J. Grabis and H. Zabel * Institut für Experimentalphysik/Festkörperphysik, Ruhr-Universität Bochum, Universittstr. 150, 44780 Bochum, Germany Available online 15 December 2004. Abstract We have studied in detail the structural and magnetic properties of an antiferromagnetically (AF) coupled Cr(25.6 )/Fe(15.2 ) superlattice by soft X-ray resonant magnetic scattering. Using the resonance condition close to the Fe /L/_3 edge, magnetic peaks are observed at the half-orders Bragg peaks positions. The magnetic hysteresis loops measured at the even-order and at the half-order Bragg peaks demonstrate the biquadratic type of AF coupling for Fe/Cr multilayer. Experimental data were simulated using the matrix formalizm in order to go away from macroscopic magnetic properties of such superlattices and to understand their layer-by-layer magnetic structure. *Keywords: *Soft X-ray resonant magnetic scattering; Noncollinearly coupled superlattice *PACS: *75.25.+z; 75.70.Cn; 61.10.Kw Article Outline References (40K) Fig. 1. (a) The scattering geometry of the experiment; (b) Reflectivity taken at the Fe /L/_3 edge with /π/ -linearly polarized radiation for AF-coupled superlattice with 10 repeats of [Fe(15.2 )/Cr(25.6 )] deposited on Cr(240 )/MgO(0 0 1) buffer-substrate system: open circles—the experimental data, solid line—the simulation using a model, corresponding to biquadratic coupling. (30K) Fig. 2. Hysteresis loop measured at the position of the structural 3rd order, (2/θ/=80.4^ ) Bragg peak for /π/ linearly (a) and left-circularly polarized radiation (b). Open circles—the experimental data, solid lines—simulation with the model presented in Fig. 4 <#fig4>. (27K) Fig. 3. Hysteresis loop measured at the position of the half-order (7/2 order, 2/θ/=97.2^ ) magnetic peak for /π/ -linearly (a) and left-circularly polarized radiation (b). Open circles—the experimental data, solid lines—simulation with the model presented in Fig. 4 <#fig4>. (15K) Fig. 4. The model used in the simulation of the hysteresis loops: the solid and dashed lines—the dependence of the angles //_1,2 of the magnetization vector of the odd and even Fe layers, correspondingly. References [1] P. Grünberg, R. Schreiber, Y. Pang, M.B. Brodsky and C.H. Sowers, /Phys. Rev. Lett./ *57* (1986), p. 2442. [2] M. Rührig, R. Schäfer, A. Hubert, R. Mosler, J.A. Wolf, S. Demokritov and P. Grünberg, /Phys. Stat. Sol. A/ *125* (1991), p. 635. [3] D.R. Lee /et al./, /Phys. Rev. B/ *68* (2003), p. 224409. *Full Text* via CrossRef [4] S. Langridge /et al./, /Phys. Rev. Lett./ *85* (2000), p. 4964. Abstract-INSPEC | $Order Document | *Full Text* via CrossRef [5] A. Nefedov, J. Grabis, A. Bergmann, F. Radu, H. Zabel, Superlattice Microstruct. (2004), in press. [6] T.P. Hase /et al./, /Phys. Rev. B/ *61* (2000), p. 15331. Abstract-INSPEC | $Order Document | APS full text | *Full Text* via CrossRef [7] A. Schreyer /et al./, /Phys. Rev. B/ *52* (1995), p. 16066. Abstract-INSPEC | $Order Document | *Full Text* via CrossRef [8] J. Grabis, A. Nefedov and H. Zabel, /Rev. Sci. Instr./ *74* (2003), p. 4048. Abstract-Compendex | $Order Document | *Full Text* via CrossRef [9] J. Zak, E.R. Moog, C. Liu and S.D. Bader, /Phys. Rev. B/ *43* (1991), p. 6423. Abstract-INSPEC | $Order Document | *Full Text* via CrossRef [10] C.T. Chen /et al./, /Phys. Rev. Lett./ *75* (1995), p. 152. Abstract-INSPEC | $Order Document | *Full Text* via CrossRef [11] J. Grabis, A. Nefedov, H. Zabel, (2004), to be published. [12] E.C. Stoner and E.P. Wohlfarth, /Phil. Trans. Roy. Soc. A/ *240* (1948), p. 599. ^ <#bcor1>Corresponding author. Tel.: +0049 234 3223 620; fax: +00 4923 432 14173. This Document *SummaryPlus* Full Text + Links PDF (255 K) Actions Cited By Save as Citation Alert E-mail Article Export Citation *Physica B: Condensed Matter * Volume 357, Issues 1-2 , 28 February 2005, Pages 22-26 Proceedings of the 8th International Conference on Surface X-ray and Neutron Scattering *12 of 56* Feedback | Terms & Conditions | Privacy Policy Copyright © 2005 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.