ORDERING INTERMETALLIC ALLOYS BY ION IRRADIATION: A NEW WAY TO TAILOR MAGNETIC MEDIA

摘要

Ferromagnetic (FePt, FePd) and antifcrromagnetic binary alloys (PtMn, PdMn) are attractive candidates for technological applications because their L1{sub}0 tetragonal chemically ordered phase exhibits high magnetic anisotropy, high blocking temperature, and large exchange bias fields. However, complete chemical ordering during the growth process requires high temperatures (>600K).