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Sublattice Ferrimagnetism in Quasifreestanding Graphene.
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.
Afiliação
  • Rybkin AG; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Tarasov AV; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Rybkina AA; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Usachov DY; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Petukhov AE; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Eryzhenkov AV; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Pudikov DA; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Gogina AA; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Klimovskikh II; St. Petersburg State University, 198504 St. Petersburg, Russia.
  • Di Santo G; Center for Advanced Mesoscience and Nanotechnology, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia.
  • Petaccia L; Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, 34149 Trieste, Italy.
  • Varykhalov A; Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, 34149 Trieste, Italy.
  • Shikin AM; Helmholtz-Zentrum Berlin für Materialien und Energie, Elektronenspeicherring BESSY II, Albert-Einstein-Str. 15, D-12489 Berlin, Germany.
Phys Rev Lett ; 129(22): 226401, 2022 Nov 23.
Article em En | MEDLINE | ID: mdl-36493449
ABSTRACT
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.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Grafite Idioma: En Revista: Phys Rev Lett Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Federação Russa

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Grafite Idioma: En Revista: Phys Rev Lett Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Federação Russa
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