COMPUTER SIMULATION OF MAGNETIC RECORDING

抄録

  We have developed the finite element method (FEM) simulation software in which a vectorial magnetization model is introduced into calculations of magnetizations in a recording medium. The new software have made physically accurate simulations of magnetic recording and reproducing processes because the head-to-medium magnetic interaction as well as the nonlinearity of a head and a medium is taken into account. In this paper, simulations of three recording systems, perpendicular, longitudinal and quasi-perpendicular magnetic recordings are performed in order to clear the distinction of recording mechanisms among three recording systems. We conclude that perpendicular components of magnetizations are stable at high densities and a sharp perpendicular component of a head field is necessary for the ultrahigh density recording.