Nuclear resonance reflectivity from a [57Fe/Cr]30 multilayer with the Synchrotron M ö ssbauer Source

M ö ssbauer reflectivity spectra and nuclear resonance reflectivity (NRR) curves have been measured using the Synchrotron M ö ssbauer Source (SMS) for a [57Fe/Cr]30 periodic multilayer, characterized by the antiferromagnetic interlayer coupling between adjacent 57Fe layers. Specific features of the M ö ssbauer 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 M ö ssbauer 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.

Source: Journal of Synchrotron Radiation - February 15, 2018 Category: Physics Authors: Andreeva, M.A. Baulin, R.A. Chumakov, A.I. R ü ffer, R. Smirnov, G.V. Babanov, Y.A. Devyaterikov, D.I. Milyaev, M.A. Ponomarev, D.A. Romashev, L.N. Ustinov, V.V. Tags: magnetic multilayers antiferromagnetic interlayer coupling ö ssbauer spectroscopy nuclear resonance reflectivity Synchrotron M ssbauer Source research papers Source Type: research