Direct observation of substrate temperature dependent domain evolution pattern in FePt alloy thin films

摘要

L10 ordered FePt alloy thin films have been extensively investigated in recent times since they are potential candidates for application in ultrahigh density magnetic recording media [1]. Most of these studies have been focused on improving the structural and magnetic properties such as obtaining small grain size, uniform grain size distribution, high coercivity, and magnetic anisotropy [2]. However, for the applicability of these materials in magnetic recording media, an understanding of the magnetization reversal behavior by real time measurements is also very essential.