Crosstalk Between Write Transducers
2008
Recording experiments on modern tape heads having closely spaced write transducers reveal the presence of writer-to-writer crosstalk. The data suggest that crosstalk arises from changes in write gap fields caused by the leakage of magneto-static flux between neighbors. Crosstalk recording simulations agree with the observed trends. Finite-element method (FEM) modeling of linear heads predicts smaller crosstalk than is experimentally observed, suggesting that nonlinear pole response is needed for explaining the phenomenon. Dependence of crosstalk on writer-to-writer spacing is computed and is consistent with the observations.
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