著者

三浦 健司 村岡 裕明 杉田 愃 中村 慶久

出版者

公益社団法人日本磁気学会

雑誌

日本応用磁気学会誌 (ISSN:18804004)

巻号頁・発行日

vol.24, no.4, pp.231-234, 2000-04-15

被引用文献数

38 34

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In perpendicular magnetic recording, medium noise is one of the crucial issues limiting the attainable density. The purpose of the reported work was to find a guiding principle for reducing the medium noise. Although previous work suggested that the media noise is caused by reversed domains in the bit cell, our time-domain noise measurements and a novel model using Voronoi cells suggest another noise origin : a noise source of transition irregularity caused by finite magnetic cluster size.