DPG Phi
Verhandlungen
Verhandlungen
DPG

SurfaceScience21 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

O: Fachverband Oberflächenphysik

O 66: Poster Session V: 2D Materials: Electronic structure, excitations, etc. I

O 66.10: Poster

Wednesday, March 3, 2021, 10:30–12:30, P

Electronic properties of metal (Fe, Co, Ni, V) / MoSe2 2D-heterostructures. — •Lyes Mesbahi1, Omar Messaoudi1, Hamid Bouzar1, and Samir Lounis21Laboratoire de Physique et Chimie Quantique (LPCQ), Mouloud Mammeri University, BP 17 RP, 15000 Tizi-Ouzou, Algeria — 2Peter Grunberg Institut and Institute for Advanced Simulation, Forschungszentrum Julich & JARA, D-52425 Julich, Germany

We present a comparative first principles investigation of the electronic properties of 2D systems consisting of a MoSe2 monolayer with a transition metal overlayer : Fe, Co, Ni and V. Our calculations show that Fe-MoSe2 and Co-MoSe2 are half-metallic ferromagnets with bandgaps of 0.94 eV and 0.74 eV, respectively, for one of the spin channels. Moreover, Ni-MoSe2 converges into a semi-conductor with an indirect bandgap of 0.68 eV. Interestingly, V-MoSe2 turns out to be an anti-ferromagnetic material with a gapless dirac-cone located 0.20 eV below the Fermi level. The combined effect of time-reversal symmetry breaking and the effect of spin-orbit coupling induced by Mo, lead to non-degenerate K and K valleys, which renders these heterostructures good candidates for diverse spintronic applications.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2021 > SurfaceScience21