Erasure of high-energy magnetic tape recording media |
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| Authors: | L. Lekawat G.W.D. Spratt M.H. Kryder |
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| Affiliation: | Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, PA 15213-3890, USA |
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| Abstract: | The erasure characteristics of CrO2, Co−γ-Fe2O3, Ba ferrite, metal-evaporated and metal particle tapes were examined. It was found that the Ba ferrite sample was the hardest to erase, and the CrO2 the easiest. For all the media studied, except Ba ferrite, longitudinal ac fields yield higher degrees of erasure than dc fields. Time domain measurements indicated that particle orientation dispersion plays an important role in the erasure process. |
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