| 摘要 |
PROBLEM TO BE SOLVED: To provide a recording/reproducing device of low floating amount using a magnetic hard disk(HD), having less decline in the output owing to spacing loss and less increase in the error rate by providing a stuck material prevention method for surely restraining generation of the stuck material. SOLUTION: This magnetic disk device is constituted so that the magnetic hard disk is used as a storage medium and the floating amount of a magnetic head to the magnetic hard disk is 20 nm or smaller when information is recorded/reproduced. The magnetic hard disk has a sticking prevention layer containing diketone compound on the surface thereof.
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