Effect of Media Reversal Mode on Head Footprint

Autor:	Bogdan F. Valcu, R. T. Lynch, B. Allimi, R. Brockie, H.J. Richter, Alexander Dobin
Rok vydání:	2008
Předmět:	Recording head Materials science business.industry Perpendicular recording Coercivity Rotation Transformation (music) Electronic Optical and Magnetic Materials Footprint (electronics) Magnetization Optics Head (vessel) Electrical and Electronic Engineering business
Zdroj:	IEEE Transactions on Magnetics. 44:3412-3415
ISSN:	0018-9464
Popis:	Using a ldquodragrdquo tester in which the recording head is in direct contact with a perpendicular media disc, we show experimentally that the footprint of the head has a ldquodoughnutrdquo shape, as predicted by theory. A change in the switching properties of the media, from coherent rotation in conventional perpendicular media to incoherent rotation in exchange spring media, can be detected through the transformation of the head footprint, from ldquodoughnutrdquo to a dome-like shape.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80b203c3d248942ab5bdc220c3aeab66 https://doi.org/10.1109/tmag.2008.2002418 Zobrazit plný text záznamu