Characterization of magnetic properties in Co/Pd multilayers by Hall effect measurement

Abstract

A Hall voltage measurement has been carried out by adopting four-probe technique to characterize the magnetization reversal characteristics in ultra-thin ferromagnetic films of (2-Angstrom Co/11-Angstrom Pd)(n) multilayer having different number of repeats it, where the anisotropy constant and saturation magnetization increased with increasing the number of repeats n. The Hall voltage exhibited a clear hysteresis behavior of Co/Pd multilayer films with sweeping the external magnetic field, and the field angle dependence and the temperature dependence of the magnetization reversal characteristics have been investigated using the Hall voltage hysteresis. (C) 2002 Elsevier Science B.V. All rights reserved.