Hard and Soft X-Ray Reflectivity Studies οf (NiFe/Au/Co/Au)10 Magnetic Multilayers |
| B. Szymański a, F. Stobiecki a, T. Weis b, D. Engel b, M. Urbaniak a, P. Kuświk a, D. Lengemann b and A. Ehresmann b
a Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland b Institute of Physics (EP IV) and Center for Interdisciplinary, Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, Kassel, Germany |
| Full Text PDF |
| We report on hard and soft X-ray reflectivity investigations of (Ni80Fe20 (2.2 nm)/Au(2.3 nm)/ Co(0.8 nm)/Au(2.3 nm))10 multilayers. Specular reflectivity curves were measured with Cu Kα radiation and circularly polarized synchrotron radiation tuned to Co L3 and Ni L3 absorption edges. Structural properties of the multilayers were determined from the hard X-ray reflectivity curve. Comparison of reflectivity curves taken at different photon energies shows: (i) small difference in peak positions in dependence of reflectivity versus scattering vector q, (ii) different shapes of satellite Bragg peaks, (iii) different ranges of q for appearance of the Kiessig fringes. Analysis of soft X-ray reflectivity curves taken as a function of magnetic field allows to determine magnetic properties of Co and NiFe layer specifically. |
| DOI: 10.12693/APhysPolA.115.366 PACS numbers: 61.05.cm, 75.60.-d, 75.70.-i |