G.R. Aranda, O.A. Chubykalo, et al.
IEEE Transactions on Magnetics
The traditional view of the longitudinal magnetic recording media is that optimal signal-to-noise (SNR) is obtained by diminishing intergranular exchange coupling. In the present work the influence of the exchange has been investigated in a realistic media with log-normal distribution of columnar grains (modeled by optimized Voronoi polyhedral) for different linear recording densities and media texture. A more realistic exchange model (surface exchange between the neighbouring grains and volume exchange inside a grain) has been employed. The data suggest that some exchange can be present in the system without sacrificing SNR.
G.R. Aranda, O.A. Chubykalo, et al.
IEEE Transactions on Magnetics
J.M. Gonzalez, G.R. Aranda, et al.
Journal of Magnetism and Magnetic Materials
R.J. Waltman, B. Lengsfield, et al.
Chemistry of Materials
O.A. Chubykalo, B. Lengsfield, et al.
Journal of Magnetism and Magnetic Materials