System for transition curvature improvement on a thermally assisted magnetic recording

摘要

A system for transition curvature improvement on thermally assisted magnetic recording, includes: an energy source, a thermally assisted magnetic recording head including a magnetic main pole for writing of a thermally assisted magnetic recording medium, a waveguide for directing an energy produced by the energy source, and a PPG including a peg and adjacent to the waveguide, the PPG being for turning the energy into a surface plasmon which travels down the peg to heat the thermally assisted magnetic recording medium. The magnetic main pole includes a first portion enabling a first magnetic field strength and at least one additional portion enabling a magnetic field strength stronger than the first magnetic field strength such that a magnetic field of the magnetic main pole along a horizontal direction thereof enables generation of a substantially straight transition curve while writing on the thermally assisted magnetic recording medium.