Title :
Magnetic spin states in diamond-shaped Ni80Fe20/Cu/Ni80Fe20 nanomagnetic trilayer
Author :
Goolaup, S. ; Singh, N. ; Adeyeye, A.O.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
We have investigated the evolution of the magnetic spin states in diamond-shaped Si(001)/Ni80Fe20(10nm)/Cu(10nm)/Ni80Fe20(40nm) nanomagnetic trilayer structures. The spin-valve structures were fabricated using deep ultra violet lithography at 248nm exposing wavelength. We observed that the diamond-shaped spin-valve structures display unique magnetic properties. The magnetization reversal process is strongly influenced by the shape-induced magnetic anisotropy. Our experimental results are in good agreement with 3-dimensional micromagnetic simulations.
Keywords :
copper; elemental semiconductors; iron alloys; magnetic anisotropy; magnetic multilayers; magnetic thin films; magnetisation reversal; nanolithography; nanostructured materials; nickel alloys; silicon; spin valves; 248 nm; 3-dimensional micromagnetic simulations; Si-Ni80Fe20-Cu-Ni80Fe20; deep ultra violet lithography; diamond-shaped nanomagnetic trilayer structures; diamond-shaped spin-valve structures display; magnetic layered films; magnetic properties; magnetic spin states; magnetization reversal process; shape-induced magnetic anisotropy; spin-valve structures; wavelength; Iron; Lithography; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic separation; Magnetization reversal; Nanostructures; Perpendicular magnetic anisotropy; Resists;
Conference_Titel :
Nanotechnology, 2005. 5th IEEE Conference on
Print_ISBN :
0-7803-9199-3
DOI :
10.1109/NANO.2005.1500747
