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| Página principal > Artículos > Artículos publicados > Field-Free Spin-Orbit Torque Switching in Janus Chromium Dichalcogenides |
| Fecha: | 2024 |
| Resumen: | We predict a very large spin-orbit torque (SOT) capability of magnetic chromium-based transition-metal dichalcogenide (TMD) monolayers in their Janus forms CrXTe, with X = S, Se. The structural inversion symmetry breaking, inherent to Janus structures is responsible for a large SOT response generated by giant Rashba splitting, equivalent to that obtained by applying a transverse electric field of ∼100 V nm in non-Janus CrTe, completely out of experimental reach. By performing transport simulations on carefully derived Wannier tight-binding models, Janus systems are found to exhibit an SOT performance comparable to the most efficient two-dimensional materials, while additionally allowing for field-free perpendicular magnetization switching, due to their reduced in-plane symmetry. Altogether, our findings evidence that magnetic Janus TMDs stand as suitable candidates for ultimate SOT-MRAM devices in an ultracompact self-induced SOT scheme. |
| Ayudas: | Agencia Estatal de Investigación PID2022-138283NB-I00 Agencia Estatal de Investigación PCI2021-122035-2A European Commission 101078370 Agencia Estatal de Investigación PRE2021-097031 Agencia Estatal de Investigación CEX2021-001214-S European Commission 800945 |
| Derechos: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
| Lengua: | Anglès |
| Documento: | Article ; recerca ; Versió publicada |
| Materia: | Spin-orbit torque ; Transition metal dichalcogenide ; 2D materials ; Van der Waals ferromagnet |
| Publicado en: | Nano letters, Vol. 24, Issue 38 (September 2024) , p. 11889-11894, ISSN 1530-6992 |
6 p, 3.4 MB |