Read/write characteristics and thermal decay on Tb–Fe–Co/Co–Cr–Pt–B hybrid perpendicular magnetic recording media

Abstract Tb–Fe–Co/Co–Cr–Pt–B hybrid media with various Tb–Fe–Co thicknesses were prepared in order to investigate high-density recording characteristics and thermal decay. As a result, the magnetic cluster size of hybrid media increased in proportion to the Tb–Fe–Co thickness. The hybrid media with 7.5 nm thickness of Tb–Fe–Co showed the highest signal-to-noise ratio and low thermal decay.