Magnetic recording medium, method for production thereof and magnetic recording and reproducing device

Abstract

A method for the production of a magnetic recording medium () includes the steps of depositing a magnetic layer or Co-containing magnetic layer () on at least one side of a nonmagnetic substrate () and partially implanting atoms into the magnetic layer or Co-containing magnetic layer to partially unmagnetize the magnetic layer or Co-containing magnetic layer, thereby forming nonmagnetic parts () and a magnetic recording pattern magnetically separated by the nonmagnetic parts and, in the case of the Co-containing magnetic layer, lowering Co (002) or Co (110) peak strength of a relevant part of the Co-containing magnetic layer as determined by the X-ray diffraction to ½ or less. A magnetic recording and reproducing device includes the magnetic recording medium (), a driving part () for driving the magnetic recording medium in a direction of recording, a magnetic head () consisting of a recording part and a regenerating part, means () for moving the magnetic head relative to the magnetic recording medium, and recording and reproducing signal processing means () adapted to enter a signal into the magnetic head and regenerate an output signal from the magnetic head.