Magnetic Structures in Ultrathin Films and Nanostructures: Simulation |
| J.-C.S. Lévya, A. Ghazalib and E.Yu. Vedmedenkoc a LPTMC, case 7020, Université Paris 7, 75251 Paris 5, France bGPS, UMR-7588 CNRS, Universités Paris 7 et Paris 6, 75251 Paris 5, France cMPI für Mikrostrukturphysik, 06120 Halle, Germany |
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| In magnetic ultrathin films and dots, competing exchange, anisotropy and dipolar couplings lead to a large variety of magnetic structures. These structures are obtained by means of the Monte Carlo simulations. Three classes of magnetic structures are obtained according to anisotropy-to-dipolar energy ratio: Ising striped structures, XY-spin structures with vortices, and twisted spin phases at the spin = reorientation transition. Domain wall nucleation and motion at the coercive field are also accessible. |
| DOI: 10.12693/APhysPolA.97.431 PACS numbers: 75.70.Ak, 75.50.Tt, 75.60.Ch, 75.40.Mg |