Spin polarization of platinum (111) induced by the proximity to cobalt nanostripes

Citation:

Meier F, Lounis S, Wiebe J, Zhou L, Heers S, Mavropoulos P, Dederichs PH, Blügel S, Wiesendanger R. Spin polarization of platinum (111) induced by the proximity to cobalt nanostripes. PHYSICAL REVIEW B. 2011;83:075407.

Abstract:

We measured a spin polarization above a Pt(111) surface in the vicinity of a Co nanostripe by spin-polarized scanning tunneling spectroscopy. The spin polarization exponentially decays away from the Pt-Co interface and is detectable at distances larger than 1 nm. By performing self-consistent ab initio calculations of the electronic structure for a related model system we reveal the interplay between the induced magnetic moments within the Pt surface and the spin-resolved electronic density of states above the surface.