Side Erasure Analysis in Perpendicular Recording Media Using Dynamic Read-Back Microscopy

Author

Albert, C. ; Abarra, E.N. ; Choe, G.

Author_Institution

MMC Technol., San Jose

fYear

2006

fDate

8-12 May 2006

Firstpage

18

Lastpage

18

Abstract

A spin-stand level dynamic read-back microscopy (DRM) technique offers ease of use and full compatibility with standard media parametrics testing. We designed and implemented a DRM tester based on a LeCroy DDA5005 oscilloscope and a Guzik spin-stand. Using a DRM, we investigated the effect of magnetic exchange coupling on side erasure of CoCrPt-SiO PMR media. Exchange was controlled by varying the oxygen partial pressure during deposition. The paper show tracks after a progressive edge-trimming from the both sides using a low DC-negative erase current.

Keywords

chromium alloys; cobalt alloys; exchange interactions (electron); magnetic heads; perpendicular magnetic recording; platinum alloys; scanning probe microscopy; silicon compounds; CoCrPt-SiO; DRM tester; Guzik spin-stand; LeCroy DDA5005 oscilloscope; PMR media; dynamic read-back microscopy; edge trimming; low DC-negative erase current; magnetic exchange coupling; oxygen partial pressure; parametrics testing; perpendicular recording media; side erasure analysis; Image resolution; Magnetic domains; Magnetic heads; Microscopy; Oscilloscopes; Perpendicular magnetic recording; Servomechanisms; Shape; Stability; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375427

Filename

4261452