Browse Prior Art Database

Amorphous Thin Films Comprising Alloys of Rare-Earth And Transition Metals for Longitudinal Magnetic Recording Media

IP.com Disclosure Number: IPCOM000041178D
Original Publication Date: 1987-Nov-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Bynum, LC: AUTHOR [+3]

Abstract

Amorphous alloys of terbium, iron and cobalt (TbFeCo) can be deposited as thin films which exhibit in-plane magnetic anisotropy. Such films formed by DC magnetron bias sputtering exhibit a nearly perfect in-plane magnetic hysteresis loop with excellent coercivity and remanent magnetization-thickness product. The films are amorphous within a wide range of compositions of the elements comprising the alloy. The amorphous nature of such films may decrease the write noise of the media.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Amorphous Thin Films Comprising Alloys of Rare-Earth And Transition Metals for Longitudinal Magnetic Recording Media

Amorphous alloys of terbium, iron and cobalt (TbFeCo) can be deposited as thin films which exhibit in-plane magnetic anisotropy. Such films formed by DC magnetron bias sputtering exhibit a nearly perfect in-plane magnetic hysteresis loop with excellent coercivity and remanent magnetization-thickness product. The films are amorphous within a wide range of compositions of the elements comprising the alloy. The amorphous nature of such films may decrease the write noise of the media.

Disclosed anonymously.

1