Tuning the magnetic anisotropy of Co nanoparticles by metal capping

• Published in: Europhysics letters Vol. 76; no. 1; pp. 142 - 148
• Main Authors: Luis, F, Bartolomé, F, Petroff, F, Bartolomé, J, García, L. M, Deranlot, C, Jaffrès, H, Martínez, M. J, Bencok, P, Wilhelm, F, Rogalev, A, Brookes, N. B
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.10.2006

The magnetic anisotropy of Co clusters with diameters ranging from 1.1 nm to 4.5 nm turns out to be significantly larger than in bulk and strongly increasing with decreasing cluster size. The dominating role of the surface can be used to modify the anisotropy by changing the electronic properties of...