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Standing Wave Effects in Nuclear Resonance Bragg Reflectivity: Comparison of the Energy and Time Scales and First Experimental Results |
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| Authors: | Andreeva M. A. Semenov V. G. Häggström L. Kalska B. Lindgren B. Chumakov A. I. Leupold O. Rüffer R. |
| Affiliation: | (1) Department of Physics, Moscow State University, 119899 Moscow, Russia;(2) Institute of Chemistry, St. Petersburg State University, 199164 St. Petersburg, Russia;(3) Department of Physics, Uppsala University, Box 530, 751 21 Uppsala, Sweden;(4) The Soltan Institute for Nuclear Studies, 05-400 Otwock-Swierk, Poland;(5) European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble, France |
| Abstract: | The applicability of the concept of standing wave for the nuclear resonance Bragg reflectivity of synchrotron radiation has been tested for a microcrystalline (Fe/Cr)26 multilayer. In the time domain the depth selectivity is strongly enhanced. A “scan” of hyperfine field distribution over bilayer depth was performed by a variation of the angle near the Bragg peak. In particular we observed that Fe/Cr and Cr/Fe interfaces are quite different and that the magnetic field orientation is different in the interfaces and in the central part of Fe layers. This revised version was published online in September 2006 with corrections to the Cover Date. |
| Keywords: | interface magnetism nuclear resonance scattering standing wave method |
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