Abstract
In this study, the thermal stability of user data written on perpendicularly oriented barium-ferrite media was evaluated in terms of the bit error rate. To determine whether recorded data can be read back after long-term preservation, we recorded a pseudorandom data pattern on barium-ferrite media at a linear density of 500 kbpi and baked the media at 65°C for an extended period. After baking, the recorded data were read back using a 0.45m-wide giant magnetoresistive read head. The bit error rate was calculated using the GPR4ML-AR model. It was found that the bit error rate was stable even after one year at 65°C. This result indicates that perpendicularly oriented barium-ferrite media has high thermal stability.
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