Title :
Size and shape effects of patterned polycrystalline islands
Author :
He, Lianna ; Wang, Frank Z. ; Mapps, D.J. ; Clegg, W.W. ; Wilton, D.T. ; Robinson, P.
Author_Institution :
SECEE, Univ. of Plymouth, UK
fDate :
9/1/1999 12:00:00 AM
Abstract :
Patterned polycrystalline cobalt islands with different sizes and shapes have been simulated by a micromagnetic simulator. An elliptic shape is found to be preferred for patterned islands to form a uniform single domain demagnetised state and have sharper squareness compared with square islands. Therefore, in a single-bit-per-island recording system, the elliptic islands could lead to a stable state and a predictable overwrite process and act independently even in a closely packed arrays
Keywords :
cobalt; magnetic domains; magnetic particles; magnetic recording; particle size; superparamagnetism; Co; Co arrays; closely packed arrays; elliptic shape; micromagnetic simulator; patterned islands; patterned polycrystalline islands; shape effects; sharper squareness; single-bit-per-island recording system; size effects; uniform single domain demagnetised state; Cobalt; Computational modeling; Crystallization; Magnetic anisotropy; Magnetic materials; Magnetic recording; Magnetization; Micromagnetics; Perpendicular magnetic recording; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
