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DF: Fachverband Dielektrische Festkörper

DF 8: Multiferroics I (Joint Session with MA, DS, KR, TT)

DF 8.4: Vortrag

Dienstag, 1. April 2014, 10:15–10:30, BEY 118

Magnetoelectric coupling in a composite multiferroic structure revealed by Ferromagnetic Resonance — •Alexander Sukhov¹, Paul P. Horley², Chenglong Jia³, and Jamal Berakdar¹ — ¹Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, GERMANY — ²Centro de Investigacion Materiales Avazados, S.C. (CIMAV), Chihuahua/Monterrey, MEXICO — ³Lanzhou University, Lanzhou, CHINA

We theoretically study [1] a thin multiferroic junction related to a barium titanate (tetragonal or rhombohedral phase) layer in contact with an iron layer. Depending on the type of the magnetoelectric coupling at the interface - either due to screening charge or due to an epitaxial strain resulting in a strong magnetoelastic coupling - we present a detailed analysis of the response of the multiferroic structure to magnetic radio-frequency fields by means of ferromagnetic resonance as a function of the applied electric field.

[1] A. Sukhov, P.P. Horley, C.-L. Jia, J. Berakdar, J. Appl. Phys. 113, 013908 (2013).