Abstract
A series of 150 nm thick Ag 100 − x Co x films ( x varying from 12 at.% to 46 at.%) were grown by e-beam coevaporation in an UHV system at substrate temperatures, T s, between 30 °C and 200 °C, followed by a heat treatment. For the analysis of the magnetic properties of the Co precipitates we fit our m( B) measurements with a log-normal distribution of radii using the Langevin function to obtain mean radii of the superparamagnetic particles. By annealing it is possible to optimize the giant magnetoresistance Δρ ρ of samples grown at room temperature, whereas no heat treatment seems to be necessary for samples evaporated at elevated temperatures. These magnetic film properties are compared with the corresponding Co particle sizes and size distributions. The film structure and morphology was determined ex situ by X-ray diffraction. Our results of the magnetic film properties are consistent with the observed changes in microstructure and Co particle growth.
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.
