A NEW METHOD FOR ANALYZING TORQUE CURVES OF UNIAXIAL ANISOTROPIC MATERIALS

Abstract

We present a simple analytic method to determine the intrinsic anisotropy energy K(u) and the easy axis orientation delta of a uniaxial anisotropic thin film by analyzing the torque curve. Analytical expressions for K(u) and delta are explicitly derived using the peak value in the measured torque curve and the angle where the torque is zero.