TY  - JOUR
AU  - Friedrich, Rico
AU  - Caciuc, Vasile
AU  - Atodiresei, Nicolae
AU  - Blügel, Stefan
TI  - Exchange interactions of magnetic surfaces below two-dimensional materials
JO  - Physical review / B
VL  - 93
IS  - 22
SN  - 2469-9950
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2016-03378
SP  - 220406
PY  - 2016
AB  - In this theoretical investigation we demonstrate that the adsorption of spatially extended two-dimensional (2D) π systems such as graphene and hexagonal boron nitride on the ferromagnetic fcc Co(111) surface leads to a specific behavior of the in-plane and interlayer Co-Co magnetic exchange interactions. More specifically, for both systems the magnetic exchange coupling within the first Co layer is enhanced, while the one between the first and the second Co layer is not modified, in contrast to the magnetic interlayer softening induced by organic molecules. Importantly, the in-plane magnetic hardening effect is mainly due to the hybridization between the pz states of the 2D π system and the d states of the Co surface.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000378198500001
DO  - DOI:10.1103/PhysRevB.93.220406
UR  - https://juser.fz-juelich.de/record/810789
ER  -