Micromagnetic simulations of semielliptical permalloy elements

• Published in: Physica. B, Condensed matter Vol. 448; pp. 253 - 255
• Main Authors: Waifalkar, P.P., Patil, P.S., Patil, P.B.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier B.V 01.09.2014; Elsevier
• Subjects: Condensed matter; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Critical-point effects, specific heats, short-range order; Demagnetization; Domain structure; Exact sciences and technology; Fluid flow; Magnetic properties and materials; Magnetization; Micromagnetics; Numerical simulation studies; Permalloy; Physics; Simulation; Small particles and nanoscale materials; Studies of specific magnetic materials; Transportation; Vortices; Magnetization; Domain structure; Micromagnetics; Nickel base alloys; Micromagnetism; Magnetic particles; Permalloy; Functionalization; Field orientation; Elliptic shape; Vortices
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2014.02.062

Magnetic spin configuration of patterned semielliptical permalloy elements useful for transportation of biofunctionlized magnetic particles was investigated by micromagnetic simulations. A demagnetized state at zero field shows a stable vortex state around the center. Application of 100Oe field along a short axis of semiellipse was found to be sufficient to completely saturate the element along the field direction.