Ferroelectricity and Rashba effect in GeTe

Data di pubblicazione: 7 Dic 2014

RivistaFonte dati: ARCHIVIO

GeTe has been proposed as the father compound of a new class of functional materials displaying bulk Rashba effects coupled to ferroelectricity: ferroelectric Rashba semiconductors. In nice agreement with first principle calculations, we show by angular resolved photoemission and piezo-force microscopy that GeTe displays surface and bulk Rashba bands arising from the intrinsic inversion symmetry breaking provided by the remanent ferroelectric polarization. This work points to the possibility to control the spin chirality of bands in GeTe by acting on its ferroelectric polarization.

Fonte
arXiv preprint arXiv:1412.2386
ID archivio
243d295768818f48e351ca9f18b07f81