Dresden 2011 – wissenschaftliches Programm
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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 Sukhov1,2, 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.