Abstract
The influence of cluster size and of cluster–substrate interaction on the magnetic propertiesof Co clusters of 1–10 atoms on Pt(111) and Au(111) is studied by fully relativistic ab initiocalculations. The focus is on systematic trends of the spin and orbital magnetic moments,the exchange coupling, and the crossover temperature. The spin magnetic moments of Coclusters are larger for the Pt substrate than for the Au substrate, while the reverse is truefor the orbital magnetic moments. The local magnetic moments of Co atoms generallyincrease if the number of Co neighbours decreases. The exchange coupling constantsJij depend on the cluster size and on the location of respective atoms. The crossovertemperature increases monotonically with cluster size and is larger for clusters on Pt thanfor clusters on Au.
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.
