Nuclear resonance reflection of synchrotron radiation from thin dysprosium films with different types of magnetic ordering

Resumo

Epitaxial thin films of dysprosium have been successfully synthesized by the method of high-vacuum magnetron sputtering and their structure and magnetic properties have been investigated. The opportunity of the nuclear resonance scattering for the investigation of nanostructures containing ¹⁶¹Dy has been considered; the specific features of the spectra of nuclear resonance reflectivity from the films have been analyzed on the energy and time scales at different orientations of the magnetic hyperfine field. The simulation of the angular dependences of nuclear resonance reflectivity for the case of spiral ordering in periodic structures containing ¹⁶¹Dy has been carried out. It has been shown that these dependences make it possible to uniquely determine the period of magnetic ordering.