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KR: Fachgruppe Kristallographie

KR 5: Poster Multiferroics (Joint Session of MA, DF, DS, KR, TT)

KR 5.44: Poster

Dienstag, 15. März 2011, 10:45–13:00, P2

Finite-size effects on the magnetoelectric response of field-driven ferroelectric/ferromagnetic chains — Chenglong Jia¹, •Alexander Sukhov^1,2, Paul P. Horley³, and Jamal Berakdar¹ — ¹Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06120 Halle/Saale, Germany — ²Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle/Saale, Germany — ³Centro de Investigation en Materiales Avanzados, S.C. (CIMAV), 31109 Chihuahua, Mexico

We study theoretically the coupled multiferroic dynamics of one-dimensional ferroelectric/ferromagnet chains with different lengths driven by harmonic magnetic and electric fields. We performed Monte-Carlo simulations and calculations based on the coupled finite-temperature Landau-Lifshitz-Gilbert and Landau-Khalatnikov equations showing that the magnetization and the polarization of thin hetero-structures can be reversed by external electric and magnetic fields, respectively.