研究目的
To analyze the performance of tunneling magnetoresistance (TMR) read heads at the off-track reading condition under the influence of recorded magnetization patterns on the medium and to understand how the magnetic field due to various data patterns impacts the read head behavior.
研究成果
The performance of hard biased read sensor at off-track reading has been studied, focusing on the influence of the media magnetic field on the dc resistance and thermal magnetic noise of the sensor. A model is introduced for calculation of reader resistance to account for effect of noncoherent rotation of the local magnetic moment. The effect may need to be properly accounted for in the recording schemes, especially when the medium with higher coercivity is used and the head to media spacing becomes extremely small.
研究不足
The study focuses on the influence of media magnetic field on the dc resistance and thermal magnetic noise of the sensor, potentially overlooking other noise sources or effects.
