Tunable spin-polarized edge currents in proximitized transition metal dichalcogenides

Autor: Cortés, Natalia, Ávalos-Ovando, O., Rosales, L., Orellana, P. A., Ulloa, S. E.
Rok vydání: 2018
Předmět:
Zdroj: Phys. Rev. Lett. 122, 086401 (2019)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.122.086401
Popis: We explore proximity-induced ferromagnetism on transition metal dichalcogenide (TMD), focusing on molybdenum ditelluride (MoTe$_{2}$) ribbons with zigzag edges, deposited on ferromagnetic europium oxide (EuO). A three-orbital tight-binding model incorporates the exchange and Rashba fields induced by proximity to the EuO substrate. For in-gap Fermi levels, electronic modes in the nanoribbon are strongly spin-polarized and localized along the edges, acting as one-dimensional (1D) conducting channels with tunable spin-polarized currents. Hybrid structures such as the MoTe$_{2}$/EuO configuration can serve as building blocks for spintronic devices, and provide versatile platforms to further understand proximity effects in diverse materials systems.
Comment: 6 pages, 4 figures
Databáze: arXiv