| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a magnetic disk that has excellent durability, particularly excellent LUL durability, and excellent alumina resistance and has a high level of reliability under a low floating quantity of a magnetic head involved in a recent tendency toward a rapid increase in recording density and a very severe environment resistance requirement due to diversified applications. <P>SOLUTION: A magnetic disk 10 comprises a substrate 1 and at least a magnetic layer 6, a carbonaceous protective layer 7, and a lubricating layer 8 provided in that order on the substrate 1. The lubricating layer 8 contains a compound that has a perfluoropolyether main chain in the structure thereof and has an aromatic group and a polar group at the end of the molecule. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
