TY  - JOUR
AU  - Jugovac, Matteo
AU  - Cojocariu, Iulia
AU  - Sánchez-Barriga, Jaime
AU  - Gargiani, Pierluigi
AU  - Valvidares, Manuel
AU  - Feyer, Vitaliy
AU  - Blügel, Stefan
AU  - Bihlmayer, Gustav
AU  - Perna, Paolo
TI  - Inducing Single Spin‐Polarized Flat Bands in Monolayer Graphene
JO  - Advanced materials
VL  - 35
IS  - 38
SN  - 0935-9648
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2023-03686
SP  - 2301441
PY  - 2023
AB  - Due to the fundamental and technological implications in driving the appearance of non-trivial, exotic topological spin textures and emerging symmetry-broken phases, flat electronic bands in 2D materials, including graphene, are nowadays a relevant topic in the field of spintronics. Here, via europium doping, single spin-polarized bands are generated in monolayer graphene supported by the Co(0001) surface. The doping is controlled by Eu positioning, allowing for the formation of a-valley localized single spin-polarized low-dispersive parabolic band close to the Fermi energy when Eu is on top, and of a π* flat band with single spin character when Eu is intercalated underneath graphene. In the latter case, Eu also induces a bandgap opening at the Dirac point while the Eu 4f states act as a spin filter, splitting the π band into two spin-polarized branches. The generation of flat bands with single spin character, as revealed by the spin- and angle-resolved photoemission spectroscopy (ARPES) experiments, complemented by density functional theory (DFT) calculations, opens up new pathways toward the realization of spintronic devices exploiting such novel exotic electronic and magnetic states.
LB  - PUB:(DE-HGF)16
C6  - 37036386
UR  - <Go to ISI:>//WOS:001032982900001
DO  - DOI:10.1002/adma.202301441
UR  - https://juser.fz-juelich.de/record/1016517
ER  -