Regensburg 2004 – scientific programme

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MA: Magnetismus

MA 2: Mikromagnetismus / Computational Magnetism

MA 2.5: Talk

Monday, March 8, 2004, 11:15–11:30, H10

Diagram of the states in arrays of iron nano-cylinders — •fabrizio porrati and michael huth — Physikalisches Institut, J. W. Goethe-Universität, Robert-Mayer-Str. 2-4, D-60054 Frankfurt a.M.

Micromagnetic simulations are performed to study the magnetic states of two-dimensional arrays of iron nano-cylinders. Quasi-single domain states and curling configurations are obtained as a function of the thickness and diameter of the cylinders and their relative distance. The results of the investigation are presented in diagrams of the states including regions of stability and metastability. The transitions between different ground state are outlined. It is found that they take place either continuously or abruptly. These investigations may have some relevance for identifying instability regions of magnetic storage arrays.