Patent ID: 8795857
Filing Date: 2014-08-05
Classification: G11B

Abstract:
1. A perpendicular magnetic recording medium comprising: a substrate; a soft magnetic layer disposed above a surface of the substrate; a magnetic recording layer disposed above the soft magnetic layer; a continuous layer which is magnetically continuous in the in-plane direction of the substrate disposed above the magnetic recording layer; a blocking layer disposed above the continuous layer and CVD (Chemical Vapour Deposition) deposited directly on the continuous layer to have a thickness of approximately 0.25 nm for blocking shock imposed on the continuous layer when carbon atoms are applied during formation of a medium protective layer; and the medium protective layer containing carbon and formed on the blocking layer, wherein the blocking layer is non-magnetic and formed only of amorphous CrTi, and wherein the medium protective layer is formed on the blocking layer while a bias voltage of 100 V to 300 V is applied to the substrate.