摘要
The characteristic of near-field spots is analyzed.The size of the near field and the heat response time of the hybrid record medium to overcome super paramagnetic effect are calculated based on the heat transfer theory. A novel measuring method for the diameter of near-field recording spot is also presented. Since the grain of the recording media is tiny enough,near-field optical lithography can be accomplished with the aid of atomic force microscope (AFM).The diameter of near-field recording spot can be obtained by specifically designed computer.So the relationship between the near-field recording spot diameter and the probe size of near-field recording system, the near field recording distance coupling between head and disc can be got.
The characteristic of near―field spots is analyzed. The size of the nearfield and the heat response time of the hybrid record medium to overcome super paramagnetic effectare calculated based on the heat transfer theory. A novel measuring method for the diameter ofnear―field recording spot is also presented. Since the grain of the recording media is tiny enough,near ― field optical lithography can be accomplished with the aid of atomic force microscope(AFM). The diameter of near ― field recording spot can be obtained by specifically designedcomputer. So the relationship between the near ― field recording spot diameter and the probe sizeof near―field recording system, the near field recording distance coupling between head and disccan be got.
基金
NationalNaturalScienceFoundationofChina ( 60 2 730 77and 697730 74 )
NationalResearchFoundationforFundamentalKeyProjects"973"ofChina(G19990 330 )
