Micromagnetic properties of CoCrPtTa/CrV thin films for high density recording media

The magnetization reversal, the magnetostatic interactions and the thermal stability of CoCrPtTa thin films for high density recording media are investigated. The reversal is found to be remarkably incoherent, particularly in the thicker films. The magnetic stability is better in the thinnest film (10 nm), and the switching volume results larger than the grain size. The behavior is influenced by the grain segregation state of the films.