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Nuclear resonance reflectivity from a [57Fe/Cr]30 multilayer with the Synchrotron Mössbauer Source |
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| Authors: | Marina A. Andreeva Roman A. Baulin Aleksandr I. Chumakov Rudolf Rüffer Gennadii V. Smirnov Yurii A. Babanov Denis I. Devyaterikov Mikhail A. Milyaev Dmitrii A. Ponomarev Lazar N. Romashev Vladimir V. Ustinov |
| Affiliation: | 1. Faculty of Physics, M. V. Lomonosov Moscow State University, Moscow119991, Russian Federation;2. ESRF – The European Synchrotron, CS 40220, 38043Grenoble Cedex 9, France;3. National Research Centre `Kurchatov Institute', Pl. Kurchatova 1, Moscow123182, Russian Federation;4. M. N. Mikheev Institute of Metal Physics UB RAS, Ekaterinburg620990, Russian Federation;5. Institute of Natural Sciences, Ural Federal University, Ekaterinburg620083, Russian Federation |
| Abstract: | Mössbauer reflectivity spectra and nuclear resonance reflectivity (NRR) curves have been measured using the Synchrotron Mössbauer Source (SMS) for a [57Fe/Cr]30 periodic multilayer, characterized by the antiferromagnetic interlayer coupling between adjacent 57Fe layers. Specific features of the Mössbauer reflectivity spectra measured with π‐polarized radiation of the SMS near the critical angle and at the `magnetic' maximum on the NRR curve are analyzed. The variation of the ratio of lines in the Mössbauer reflectivity spectra and the change of the intensity of the `magnetic' maximum under an applied external field has been used to reveal the transformation of the magnetic alignment in the investigated multilayer. |
| Keywords: | magnetic multilayers antiferromagnetic interlayer coupling Mö ssbauer spectroscopy nuclear resonance reflectivity Synchrotron Mö ssbauer Source |