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 is exponentially decaying 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.
@article{arxiv.1010.2109,
title = {Spin-polarization of platinum (111) induced by the proximity to cobalt nanostripes},
author = {Focko Meier and Samir Lounis and Jens Wiebe and Lihui Zhou and Swantje Heers and Phivos Mavropoulos and Peter H. Dederichs and Stefan Blügel and Roland Wiesendanger},
journal= {arXiv preprint arXiv:1010.2109},
year = {2015}
}