Micromagnetic recording model of writer geometry effects at skew

Autor:	R. P. Michel, Steven P. Bozeman, Martin L. Plumer, J. van Ek
Rok vydání:	2006
Předmět:	Physics Signal-to-noise ratio Field (physics) Skew General Physics and Astronomy Perpendicular recording Geometry Micromagnetics Square (algebra) Finite element method Test data
Zdroj:	Journal of Applied Physics. 99:08K501
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.2170046
Popis:	The effects of the pole-tip geometry at the air-bearing surface on perpendicular recording at a skew angle are examined through modeling and spin-stand test data. Head fields generated by the finite element method were used to record transitions within our previously described micromagnetic recording model. Write-field contours for a variety of square, rectangular, and trapezoidal pole shapes were evaluated to determine the impact of geometry on field contours. Comparing results for recorded track width, transition width, and media signal to noise ratio at 0° and 15° skew demonstrate the benefits of trapezoidal and reduced aspect-ratio pole shapes. Consistency between these modeled results and test data is demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80841134b2dac9e8fcc0fd319fde6c88 https://doi.org/10.1063/1.2170046 Zobrazit plný text záznamu