title: Effect of the Pt buffer layer on perpendicular exchange bias based on collinear/non-collinear coupling in a Cr2O3/Co3Pt interface.
abstract: In this study, we fabricated a Cr2O3(0001) film without and with a Pt buffer layer and investigated its effect on perpendicular exchange coupling in a Cr2O3/Co3Pt interface. The results showed that the exchange bias field (μ0Hex) and blocking temperature (TB) of a Cr2O3film without and with Pt were very different. The Cr2O3film without Pt had a lower μ0Hexof 176 Oe and a lower TBof 75 K, whereas that with Pt had a higher μ0Hexof 436 Oe and a higher TBof 150 K. We discussed this difference in μ0Hexand TBvalues based on collinear/non-collinear coupling in a ferromagnetic and antiferromagnetic interface using Meiklejohn and Bean's exchange anisotropy model.
authors: T
authors: T
authors: Ashida
authors: Y
authors: Y
authors: Sato
authors: T
authors: T
authors: Nozaki
authors: M
authors: M
authors: Sahashi
references: Phys Rev Lett. 2005 Mar 25;94(11):117203
references: 15903885
references: Nat Mater. 2010 Jul;9(7):579-85
references: 20562879