| 摘要 |
<p>A recording element needs to have a certain cross section in order to permit the magnetic flux for reversing the magnetization of the magnetic layer of a magnetic disc to pass. When the shape of the cross section of the pole has a large aspect ratio, the magnetic flux can not be passed through the pole effectively. This phenomenon determines the lower limit of the track width of the pole and makes impossible the increase of the track density. In order to solve this problem, the width of the recording element is wider than the track pitch to ensure a recording magnetic field intensity high enough to reverse the magnetization of the magnetic layer, and recording is performed by shifting a recording head having the recording element. A large capacity magnetic disc device whose recording element width is smaller than the track width is realized.</p> |
