Title :
Magnetic anisotropy in magnetostatically coupled Ni80Fe20 nanowires
Author :
Goolaup, S. ; Singh, N. ; Adeyeye, A.O. ; Ng, V. ; Jalil, M.B.A.
Author_Institution :
Dept.of Electr. & Comput. Eng., Nat. Univ.of Singapore, Singapore
Abstract :
We have investigated the magnetic property of magnetostatically coupled 80 nm Ni80Fe20 nanowires fabricated using KrF lithography exposure tools, electron beam deposition and lift-off. The variation of coercivity and squareness as a function of angle was investigated. We observed that both the coercivity and the squareness are strongly dependent on the orientation of the magnetic field relative to the wire easy axis. We observed that shape anisotropy dominates the reversal processes.
Keywords :
coercive force; ferromagnetic materials; iron alloys; magnetic anisotropy; magnetic hysteresis; magnetic thin films; nanowires; nickel alloys; vapour deposited coatings; 80 nm; KrF lithography; Ni80Fe20 nanowires; NiFe; coercivity; electron beam deposition; magnetic anisotropy; magnetic field orientation; magnetic properties; magnetostatic coupling; reversal processes; shape anisotropy; Coercive force; Electron beams; Iron; Lithography; Magnetic anisotropy; Magnetic properties; Magnetostatics; Nanowires; Optical coupling; Perpendicular magnetic anisotropy;
Conference_Titel :
Nanotechnology, 2004. 4th IEEE Conference on
Print_ISBN :
0-7803-8536-5
DOI :
10.1109/NANO.2004.1392389
