Hybrid magnetoresistance in the proximity of a ferromagnet
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
87
Journal Issue
22
Date Issued
2013
Author(s)
Abstract
We report a new magnetoresistance (MR) effect observed in a nominally nonmagnetic metal (Pt) thin film in contact with either a ferromagnetic insulator or a ferromagnetic metal. The resistivities with in-plane magnetic fields parallel (ρ) and transverse (ρT) to a current and a perpendicular field (ρ) show the behavior of ρ ≈ ρ > ρT, distinctly different from all other known MR effects, including anisotropic MR with ρ > ρT ≈ ρ. We termed the new MR as hybrid MR, which appears in a metal in close proximity with a ferromagnet either insulating or metallic, and is associated with the induced magnetic moments at the interface. © 2013 American Physical Society.
Type
journal article