Magnetic alloy and magnetic recording medium and method for preparation thereof and target for forming magnetic film and magnetic recording device

摘要

It is an object of the present invention to provide a magnetic recording medium having a magnetic film having high standardized coercive force and controlling thermal disturbance and having thermally stable magnetic properties, a method for producing an alloy and a magnetic recording medium, and a target for magnetic film formation.;The present invention relates to a magnetic alloy mainly composed of cobalt (Co), chromium (Cr) and germanium (Ge)_xCr_yGe_zX, y and z representing the composition ratios are 78 X 87, 2.5 Y 14.5, 3.5 Z 15 and x + y + z = 100 Quot;). /RTI Further, the present invention is characterized in that the composition is represented by a composition formula of CoCrGeT (at least one of Ta, Si, Nb, B, Ni and Pt) or CoCrGeT '(T' is at least one of Ta, B and Pt) Of the composition system.