Micromagnetic Simulation of MR Head Considering Interaction with Recording Medium

The influence of the erased state of a recording medium on the read response of a GMR head was investigated using a micromagnetic simulator that takes into account the full interaction between a GMR head and a double-layered medium. The calculated results clearly showed that a baseline shift occurs for a dc-erased medium. In addition, the magnetization configurations in the shields and the soft underlayer (SUL) result in complicated roll-off properties: the amplitudes of the output signal was increased by suppressing the longitudinal bias field strength when the vortex magnetizations in the shield and SUL rotate counter-clockwise, and vice versa.

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Micromagnetic Simulation of MR Head Considering Interaction with Recording Medium

Cited by 2 publications

References 2 publications

Read response of a GMR sensor investigated with a micromagnetic model

Read response of a GMR sensor investigated with a micromagnetic model

Influences of Medium Erased States on the Reading Properties of a GMR Head

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