Abstract
Hyperfine fields in magnetic multilayer samples of Fe/Co and Fe/Cu having equal layer thickness of Fe and Co and Fe and Cu were measured in samples having layer thickness in the range 10–150 Å by 57Fe Mössbauer spectroscopy. Measurements were made at 290, 77 and 4.2 K. The mean hyperfine field B hf at Fe sites in Fe/Co multilayers was found to increase with decreasing layer thickness. The mean hyperfine field at Fe sites in Fe/Cu multilayers was observed to decrease with decreasing layer thickness. The decrease in B hf between 4.2 and 290 K was found to be much greater in Fe/Cu samples than in Fe/Co. The Mössbauer spectra are well fitted with two sextet components, one corresponding to interface Fe sites and the other to midlayer Fe sites. Analysis of the relative intensity of these components measures the interface layer thickness. The variation of hyperfine field with sample layer thickness can be well accounted for using the measured thickness of the interface layers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
