公开(公告)号：US20180261245A1

公开(公告)日：2018-09-13

申请号：US15885013

申请日：2018-01-31

Applicant: SHOWA DENKO K.K.

Inventor： Kazuya NIWA ,  Tetsuya KANBE ,  Yuji MURAKAMI ,  Lei ZHANG ,  Hisato SHIBATA ,  Takayuki FUKUSHIMA ,  Satoru NAKAJIMA ,  Takehiro YAMAGUCHI

IPC: G11B5/65 ,  G11B5/39 ,  G11B5/73 ,  G11B5/012 ,  G11B5/74 ,  G11B5/714 ,  G11B5/187

CPC classification number: G11B5/656 ,  G11B5/012 ,  G11B5/1875 ,  G11B5/3133 ,  G11B5/3912 ,  G11B5/714 ,  G11B5/73 ,  G11B5/7325 ,  G11B5/746 ,  G11B2005/0021

Abstract: The invention provides a magnetic recording medium with an excellent signal-to-noise ratio during reading by reducing the noise produced during writing of data onto the magnetic recording medium, and increasing the signal level. The assisted magnetic recording medium according to one embodiment comprising a substrate, a base layer, and a magnetic layer composed mainly of an alloy with an L10-type crystal structure, the assisted magnetic recording medium having a pinning layer in contact with the magnetic layer, and the pinning layer including Co or an alloy composed mainly of Co.