混合记录热效应研究

A Study on Heat Effect of Hybrid Recording

在混合记录系统中 ,记录材料矫顽力依赖于温度 ,激光可用来降低矫顽力使得仅仅在激光加热的地方磁元翻转。对波导锥尖近场光斑和记录介质热响应进行了仿真研究 ,结果证实采用高矫顽力的磁记录材料。

In a hybrid recording system, the coercivity is dependent on temperature, and an external laser can locally reduce its value to a point where the field from the magnetic head is sufficient to switch the magnetization and this occurs only where this area crosses the magnetic field from the head. The rectangle waveguide near field optical spot and the recording media heat effect have been studied. The results indicate that the rectangle waveguide near field heating technology can break superparamagnetic limit.