Title :
Modelling of hysteresis loops of arrays of 100 nm period nanomagnets
Author :
Ross, C.A. ; Savas, T.A. ; Smith, H.I. ; Hwang, M. ; Chantrell, R.
Author_Institution :
Dept. of Mater. Sci. & Eng., MIT, Cambridge, MA, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
Magnetic hysteresis loops have been measured for a 100 nm period array of 35 nm diameter nickel pyramids formed by interferometric lithography. Results are compared with a computational model which describes a square array of Stoner-Wohlfarth particles. This allows the distribution of particle anisotropies and easy axis directions, and the switching mechanism, to be inferred
Keywords :
magnetic anisotropy; magnetic hysteresis; magnetic particles; magnetic switching; magnetisation reversal; nanostructured materials; nickel; 100 nm; Ni; Stoner-Wohlfarth particle; anisotropy; computational model; easy axis; interferometric lithography; magnetic hysteresis loop; magnetisation reversal; nanomagnet array; nickel pyramid; switching; Computational modeling; Lithography; Magnetic anisotropy; Magnetic hysteresis; Magnetic separation; Magnetic switching; Magnetostatics; Nickel; Particle measurements; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
