Measurement of Write Margin of BPM using Static-tester

Autor:	Katsuya Miura, Hajime Aoi, K. Shirahata, Hideki Saga, Takehito Shimatsu, Hiroaki Muraoka
Rok vydání:	2011
Předmět:	Synchronization (alternating current) Materials science Margin (machine learning) Patterned media Perpendicular Electrical and Electronic Engineering Write margin Condensed Matter Physics Instrumentation Simulation Electronic Optical and Magnetic Materials
Zdroj:	Journal of the Magnetics Society of Japan. 35:171-174
ISSN:	1882-2932 1882-2924
DOI:	10.3379/msjmag.1104r002
Popis:	Bit patterned media (BPM) recording has been studied as one of the possible candidates for future perpendicular magnetic recording. For the basic R/W evaluating of BPM system, small areas of media samples are suitable in most cases. A static tester is useful to measure such small areas of BPM to evaluate their read-write characteristics. We have prepared a tester, and found that measurement with write synchronization was possible. We report here the experimental results obtained from investigations into the write-margin measurements of the BPM. A position margin of 50∼71 % of the dot period was confirmed, and we found the margin loss was related to the formation of multi-domain dots.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5e5b864b4532b446df1deafab3d24b2 https://doi.org/10.3379/msjmag.1104r002 Zobrazit plný text záznamu