Berlin 2015 – wissenschaftliches Programm
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KR: Fachgruppe Kristallographie
KR 3: Poster Session on Ferroic Domain Walls - Multiferroics (DF jointly with KR, MA, TT)
KR 3.24: Poster
Montag, 16. März 2015, 19:00–21:00, Poster C
Towards an experimental evidence of the linear magnetoelectric coupling — •Alexander Sukhov1, Levan Chotorlishvili1, Paul P. Horley2, Chenglong Jia3, and Jamal Berakdar1 — 1Institut für Physik, Martin-Luther-Universität, Halle-Wittenberg, 06099 Halle (Saale), Germany — 2Centro de Investigacion en Materiales Avanzados (CIMAV S.C.), Chihuahua/Monterrey, 31109 Chihuahua, Mexico — 3Key Laboratory for Magnetism and Magnetic Materials of the MOE, Lanzhou University, Lanzhou 730000, China
We present a theoretical study combining simulations of ferromagnetic resonance (FMR) for interfacesof Co/BaTiO3 and Fe/BaTiO3 [1] and calculations of the mean first passage times for a system of single-domain Fe-nanoparticles deposited on a ferroelectric BaTiO3-substrate [2]. The study is focused on the consequences of the magnetoelectric coupling - which is considered to be linear in polarization and magnetization due to a screening mechanism - on the spectra of absorbed power [1] and the mean switching times of the Fe-nanoparticles [2]. In particular, we demonstrate and discuss how to extract an information on the symmetry and the strength of the magnetoelectric coupling from FMR-experiments, which was recently evidenced in the experiments of Ref. [3] or from eventual telegraph-noise-like experiments.
[1] A. Sukhov, P.P. Horley, C.-L. Jia, J. Berakdar, J. Appl. Phys. 113, 013908 (2013). [2] A. Sukhov, L. Chotorlishvili, P.P. Horley, C.-L. Jia, S. Mishra, J. Berakdar, J. Phys. D: Appl. Phys. 47, 155302 (2014). [3] N. Jedrecy at al., Phys. Rev. B 88, 121409(R) (2013).