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TT: Fachverband Tiefe Temperaturen
TT 49: Frustrated Magnets: Strong Spin-Orbit Coupling I
TT 49.12: Talk
Wednesday, March 20, 2024, 18:00–18:15, H 2053
β-RuCl3 / graphene heterostructures: a new playground for exotic physics — •Aleksandar Razpopov, Sananda Biswas, and Roser Valentí — Institut für Theoretische Physik, Goethe Universität, Frankfurt, Germany
In recent years emerging novel phases in α-RuCl3-graphene heterostructures have been intensively discussed [1-4] in the context of Kitaev physics and its charge transfer properties. In contrast, β-RuCl3, a polymorph of α-RuCl3, has received much less attention. This system has a chain-like structure of Ru ions instead of the honeycomb lattice pattern in α-RuCl3. Recently, 1D-heterostructures of β-RuCl3 on graphene have been fabricated in the form of high quality uniform and long-single crystalline atomic scale wires [5]. In this talk, we will present a first principles study of the electronic structure of β-RuCl3/graphene heterostructures and will discuss the importance of strain effects to control charge transfer between these two compounds and its relevance for the resulting electronic properties.
[1] Rossi et al., Nano Lett. 23, 17, 8000
[2] Balgley et al., 22, 10, 4124
[3] Biswas et al., Phys. Rev. Lett. 123, 237201
[4] V. Leeb et al., Phys. Rev. Lett. 126, 097201
[5] Tomoya et al., Adv. 9, eabq5561