Environmental Temperature Effect on Magnetization Stability in Particulate Recording Media

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概要

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• This paper reports the thermal stability of particulate media, which include Co-Fe oxide, CrO_2, and thick and thin MP tapes. By measuring the time decay of magnetization at room temperature, fluctuation fields were obtained as a function of reverse applied field. It was clarified that the fluctuation field has a constant and minimum value when the reverse applied field is equal to coercivity. Minimum fluctuation fields for the four particulate tapes were measured at several environmental temperatures ranging from -75℃ to +100℃. It was also clarified that the fluctuation field normalized by remanence coercivity increases as the environmental temperature increases for all tapes, indicating that it is a good measure of thermal stability. Activation volumes were also deduced as a function of temperature.

• 社団法人電子情報通信学会の論文
• 1997-09-25

著者

• Suzuki Toshiyuki

  Kyushu Institute of Design

• MITSUGI Tomohiro

  Kyushu Institute of Design

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• Overwrite Characteristics for Thin Recording Media
• Environmental Temperature Effect on Magnetization Stability in Particulate Recording Media

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