Magnetoelectric Effect in L10-CoPd Thin Films

Authors

Priyanka Manchanda, LMN Institute of Information TechnologyFollow
Ralph Skomski, University of Nebraska-LincolnFollow
A. Solanki, Malaviya National Institute of Technology, Jaipur-302017, Rajasthan, India
P. S. A. Kumar, Indian Institute of Science
Arti Kashyap, LMN Institute of Information TechnologyFollow

Date of this Version

10-2011

Citation

IEEE TRANSACTIONS ON MAGNETICS, VOL. 47, NO. 10, OCTOBER 2011; Doi: 10.1109/TMAG.2011.2147293

Comments

Copyright 2011 IEEE. Used by permission.

Abstract

The effect of an applied electric field on the magnetic properties of L1₀-ordered CoPd thin films is investigated by first-principle calculations. Both the magnetic moment and the magnetocrystalline anisotropy of the surface atoms are changed by the electric field, but the net effect depends on the surface termination. The magnetocrystalline anisotropy switches from in-plane to perpendicular in the presence of external electric field. Typical magnetic-moment changes are 0.1 μ_Bper eV/Å The main mechanism is the shift of the Fermi level, but the anisotropy change also reflects a crystal-field change due to incomplete screening.