Cross-track pulse shape and nonlinear loss as a function of frequency and side track erasure in perpendicular magnetic recording systems

Autor:	Orly B. Tarun, Mark A. Nichols
Rok vydání:	2013
Předmět:	Linear density Physics Nonlinear system Amplitude Nuclear magnetic resonance Track (disk drive) Perpendicular Erasure Electrical and Electronic Engineering Signal Electronic Optical and Magnetic Materials Computational physics Pulse (physics)
Zdroj:	IEEE Transactions on Magnetics. 49:5616-5619
ISSN:	1941-0069 0018-9464
Popis:	Many previous publications have shown signal amplitude of magnetic recording systems decrease as cross-track run-out or linear density increases. This study expands on this work by characterizing cross-track transition width (T50) and nonlinear partial erasure (NLPE) changes with linear density, read-back location, and track edge erasure. Both T50 and NLPE data shown in this paper were calculated from filtered odd harmonic amplitude cross-track profiles. This analysis is novel, in that it establishes a model which describes why NLPE and T50 change by read-back location, linear density, and track-edge erasure due to non-uniform first and third harmonic widths.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eadfb7e9fece241edab26730ef858b5a https://doi.org/10.1109/tmag.2013.2278523 Zobrazit plný text záznamu