Magnetic anisotropy of deposited transition metal clusters

Authors

S. Bornemann, Ludwig-Maximilians-Universitat Munchen, 81377 Munchen, Germany
J. Minar, Ludwig-Maximilians-Universitat Munchen, 81377 Munchen, Germany
J.B. Staunton, Max Planck Institut for Solid State Research, 70569 Stuttgart, Germany
Jan Honolka, Max-Planck-Institut für FestkörperforschungFollow
Axel Enders, University of Nebraska at LincolnFollow
Hubert Ebert, Ludwig-Maximilians-Universitat MunchenFollow

Date of this Version

2007

Comments

Published in Eur. Phys. J. D 45, 529–534 (2007). Copyright EDP Sciences. Used by permission.

Abstract

We present results of magnetic torque calculations using the fully relativistic spin-polarized Korringa-Kohn-Rostoker approach applied to small Co and Fe clusters deposited on the Pt(111) surface. From the magnetic torque one can derive amongst others the magnetic anisotropy energy (MAE). It was found that this approach is numerically much more stable and also computationally less demanding than using the magnetic force theorem that allows to calculate the MAE directly. Although structural relaxation effects were not included our results correspond reasonably well to recent experimental data.