Abstract
The digital recording characteristics of a metal particulate tape (MP tape) with a thinner megnetic layer are investigated by a computer simulation based on the finite element method and a curling magnetization reversal model of the medium. We discuss the effect of the magnetic layer thickness of the medium on the recording and reproducing characteristics, namely, the reproduced voltage υs. wavelength property, the peak shift and asymmetry of a di-bit reproduced signal, and the nonlinearity of a recorded and reproduced signal response. The smaller magnetic layer thickness, which is approximately equal to a quarter of a wavelength gives the maximum reproduced voltage. The reproduced waveform asymmetry and the peak shift are reduced by using the smaller magnetic layer.
