Method for preparing FePt media at low ordering temperature and fabrication of exchange coupled composite media and gradient anisotropy media for magnetic recording

摘要

A method includes: constructing a multilayer structure including a first layer of Pt, a first layer of A1 phase FePt on the first layer of Pt, and a second layer of Pt on the layer of FePt, and annealing the multilayer structure to convert the A1 phase FePt to L1o phase FePt.