Details

Autor(en) / Beteiligte

• Rybkin, Artem G
• Tarasov, Artem V
• Rybkina, Anna A
• Usachov, Dmitry Yu
• Petukhov, Anatoly E
• Eryzhenkov, Alexander V
• Pudikov, Dmitrii A
• Gogina, Alevtina A
• Klimovskikh, Ilya I
• Di Santo, Giovanni
• Petaccia, Luca
• Varykhalov, Andrei
• Shikin, Alexander M

Titel

Sublattice Ferrimagnetism in Quasifreestanding Graphene

Ist Teil von

• Physical review letters, 2022-11, Vol.129 (22), p.226401-226401, Article 226401

Ort / Verlag

United States

Erscheinungsjahr

2022

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We show that graphene can be magnetized by coupling to a ferromagnetic Co film through a Au monolayer. The presence of dislocation loops under graphene leads to a ferrimagnetic ordering of moments in the two C sublattices. It is shown that the band gap of ∼80  meV in the K[over ¯] point has a magnetic nature and exists for ferrimagnetic ordering. Interplay between Rashba and exchange couplings is evidenced by spin splitting asymmetry in spin-ARPES measurements and fully supported by DFT calculation of a (9×9) unit cell. Owing to sign-opposite Berry curvatures for K[over ¯] and K[over ¯]^{'} valleys, the synthesized system is promising for the realization of a circular dichroism Hall effect.