Magnetic Field Modulation Recording Characteristics of a TbFeCo/Ultra-Thin DyFeCo Double Layer

Autor: Takeo Kawase, Satoshi Nebashi, Masaya Ishida, Tatsuya Shimoda
Rok vydání: 1997
Předmět:
Zdroj: Journal of the Magnetics Society of Japan. 21:333-336
ISSN: 0285-0192
DOI: 10.3379/jmsjmag.21.333
Popis: We studied the magnetic field sensitivity in a double layer which was composed of a TbFeCo recording layer with low Tb content and a high-Tc RE-rich DyFeCo ultrathin layer. The Tb14Fe82Co4/Dy30Fe35Co35 double layer has better magnetic field sensitivity than a TbFeCo single recording layer. We concluded that the high C/N of the double layer disk was caused by the large MS of the recording layer and suppression of micro-domain nucleation by the ultra-thin DyFeCo layer.
Databáze: OpenAIRE