Surface Magnetoelectric Effect in Ferromagnetic Metal Films

Chun-Gang Duan, Julian P. Velev, R. F. Sabirianov, Ziqiang Zhu, Junhao Chu, S. S. Jaswal, and E. Y. Tsymbal

Phys. Rev. Lett. 101, 137201 – Published 22 September 2008

Abstract

A surface magnetoelectric effect is revealed by density-functional calculations that are applied to ferromagnetic Fe(001), Ni(001), and Co(0001) films in the presence of an external electric field. The effect originates from spin-dependent screening of the electric field which leads to notable changes in the surface magnetization and the surface magnetocrystalline anisotropy. These results are of considerable interest in the area of electrically controlled magnetism and magnetoelectric phenomena.

Received 25 June 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.137201

Authors & Affiliations

Chun-Gang Duan¹, Julian P. Velev^2,3, R. F. Sabirianov^3,4, Ziqiang Zhu¹, Junhao Chu¹, S. S. Jaswal^2,3, and E. Y. Tsymbal^2,3

¹Key Laboratory of Polarized Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200062, China
²Department of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska 68588, USA
³Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588, USA
⁴Department of Physics, University of Nebraska, Omaha, Nebraska 68182, USA

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Issue

Vol. 101, Iss. 13 — 26 September 2008

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