Giant Spin-splitting in the Bi/Ag(111) Surface Alloy
材料科学
2018-04-06 v1
摘要
Surface alloying is shown to produce electronic states with a very large spin-splitting. We discuss the long range ordered bismuth/silver(111) surface alloy where an energy bands separation of up to one eV is achieved. Such strong spin-splitting enables angular resolved photoemission spectroscopy to directly observe the region close to the band edge, where the density of states shows quasi-one dimensional behavior. The associated singularity in the local density of states has been measured by low temperature scanning tunneling spectroscopy. The implications of this new class of materials for potential spintronics applications as well as fundamental issues are discussed.
引用
@article{arxiv.cond-mat/0509509,
title = {Giant Spin-splitting in the Bi/Ag(111) Surface Alloy},
author = {Christian R. Ast and Daniela Pacilé and Mihaela Falub and Luca Moreschini and Marco Papagno and Gero Wittich and Peter Wahl and Ralf Vogelgesang and Marco Grioni and Klaus Kern},
journal= {arXiv preprint arXiv:cond-mat/0509509},
year = {2018}
}
备注
4 pages, 4 figures