By performing density functional theory and Green's functions calculations, complemented by x-ray photoemission spectroscopy, we investigate the electronic structure of Fe/GeTe(111), a prototypical ferromagnetic/Rashba-ferroelectric interface. We reveal that such a system exhibits several intriguing properties resulting from the complex interplay of exchange interaction, electric polarization, and spin-orbit coupling. Despite a rather strong interfacial hybridization between Fe and GeTe bands, resulting in a complete suppression of the surface states of the latter, the bulk Rashba bands are hardly altered by the ferromagnetic overlayer. This could have a deep impact on spin-dependent phenomena observed at this interface, such as spin-to-charge interconversion, which are likely to involve bulk rather than surface Rashba states.
|Titolo:||Fe/GeTe(111) heterostructures as an avenue towards spintronics based on ferroelectric Rashba semiconductors|
|Data di pubblicazione:||2019|
|Appare nelle tipologie:||01.1 Articolo in Rivista|
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|[PhysRevB_Slawinska] Fe-GeTe(111) heterostructures as an avenue towards spintronics based on ferroeletrci Rashba semiconductors.pdf||PDF editoriale||Accesso riservato|