Tunable Spin-Polarized Edge Currents in Proximitized Transition Metal Dichalcogenides

Natalia Cortés, O. Ávalos-Ovando, L. Rosales, P. A. Orellana, and S. E. Ulloa
Phys. Rev. Lett. 122, 086401 – Published 25 February 2019
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Abstract

We explore proximity-induced ferromagnetism on transition metal dichalcogenides (TMDs), focusing on molybdenum ditelluride ribbons with zigzag edges, deposited on ferromagnetic europium oxide (EuO). A tight-binding model incorporates exchange and Rashba fields induced by proximity to EuO or similar substrates. For in-gap Fermi levels, electronic modes in the nanoribbon are localized along the edges, acting as one-dimensional (1D) conducting channels with tunable spin-polarized currents. TMDs on magnetic substrates can become very useful in spintronics, providing versatile platforms to study the proximity effects and electronic interactions in complex 1D systems.

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  • Received 13 July 2018
  • Revised 5 December 2018

DOI:https://doi.org/10.1103/PhysRevLett.122.086401

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Natalia Cortés1,2,*, O. Ávalos-Ovando2, L. Rosales1, P. A. Orellana1, and S. E. Ulloa2

  • 1Departamento de Física, Universidad Técnica Federico Santa María, Casilla 110V, Valparaíso, Chile
  • 2Department of Physics and Astronomy, and Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701–2979, USA

  • *natalia.cortesm@usm.cl

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Issue

Vol. 122, Iss. 8 — 1 March 2019

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