A Study of Linear Density Dependence of Media Noise Power in Perpendicular Magnetic Recording

Autor:	M. Hashimoto, Yasutaka Nishida, Roger Wood, Ikuya Tagawa, Hiroyuki Katada
Rok vydání:	2013
Předmět:	Linear density Physics Noise power Magnetization Nuclear magnetic resonance Condensed matter physics Perpendicular Noise spectrum Electrical and Electronic Engineering Saturation (magnetic) Transition noise Electronic Optical and Magnetic Materials Low noise
Zdroj:	IEEE Transactions on Magnetics. 49:3695-3698
ISSN:	1941-0069 0018-9464
DOI:	10.1109/tmag.2013.2243903
Popis:	Media noise power saturates at high linear density in perpendicular magnetic recording. It has been reported that one of the root causes is transition noise saturation due to unsaturated magnetization governed by transition width. However, noise saturation phenomena cannot be fully explained by this mechanism alone. For example, low noise media which saturate at lower linear density show better read-write performance. In this study, we show that noise saturation can be explained by a combination of a readback effect and a noise spectrum that changes with density.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b5d2ef0ec587c8fdbc85f25202ea4ab0 https://doi.org/10.1109/tmag.2013.2243903 Zobrazit plný text záznamu