Title :
Vortex states stability in circular Co(0001) dots
Author :
Buda, L.D. ; Prejbeanu, I.L. ; Demand, M. ; Ebels, U. ; Punadjela, K.
Author_Institution :
Inst. de Phys. et Chimie des Mater. de Strasbourg, France
fDate :
7/1/2001 12:00:00 AM
Abstract :
The possible magnetization configurations of individual circular Co(0001) dots are investigated by means of 3D micromagnetic simulations as a function of dot dimensions. In zero applied field, the vortex state corresponds to the ground state for diameters larger than 60 nm and up to a thickness of 25 nm where a transition into a weak stripe structure occurs
Keywords :
cobalt; ground states; magnetic force microscopy; magnetic particles; magnetisation; 3D micromagnetic simulations; Co; MFM; circular Co(0001) dots; dot dimensions; ground state; magnetization configurations; vortex states stability; weak stripe structure; zero applied field; Anisotropic magnetoresistance; Demagnetization; Magnetic anisotropy; Magnetic force microscopy; Magnetic materials; Magnetostatics; Perpendicular magnetic anisotropy; Saturation magnetization; Stability; US Department of Transportation;
Journal_Title :
Magnetics, IEEE Transactions on
