Magnetic activation volumes of obliquely evaporated Co–CoO tape

Magnetic activation volumes of obliquely evaporated Co–CoO tape

Magnetic activation volumes of obliquely evaporated Co–CoO tape were investigated. With introduction of oxygen, magnetic activation volume calculated from irreversible susceptibility and magnetic viscosity coefficient was saturated to almost 6.0×10 −24 m 3, which is due to the columnar structure cau...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2001-10, Vol.235 (1), p.30-33
Hauptverfasser: Motohashi, K., Samoto, T., Yoshida, S., Wako, H., Onodera, S.
Format: Artikel
Sprache:eng
Schlagworte:
Activation volume
Applied sciences
Electronics
Exact sciences and technology
Magnetic and optical mass memories
Media noise
Metal evaporated tape
MR head
Storage and reproduction of information
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Zusammenfassung:Magnetic activation volumes of obliquely evaporated Co–CoO tape were investigated. With introduction of oxygen, magnetic activation volume calculated from irreversible susceptibility and magnetic viscosity coefficient was saturated to almost 6.0×10 −24 m 3, which is due to the columnar structure caused from the oblique evaporation. Using this measurement, the carrier to noise ratio of Co–CoO tape can be estimated quantitatively.
ISSN:0304-8853
DOI:10.1016/S0304-8853(01)00294-3