تقرير
Giant Spin-Orbit Torque in Cr-based Janus Transition Metal Dichalcogenides
| العنوان: | Giant Spin-Orbit Torque in Cr-based Janus Transition Metal Dichalcogenides |
|---|---|
| المؤلفون: | Vojáček, Libor, Dueñas, Joaquín Medina, Li, Jing, Ibrahim, Fatima, Manchon, Aurélien, Roche, Stephan, Chshiev, Mairbek, García, José H. |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | We report a very large spin-orbit torque (SOT) capability of chromium-based transition metal dichalcogenides (TMD) 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 $\sim 100 \,\text{V} \,\text{nm}^{-1}$ in non-Janus CrTe\textsubscript{2}, completely out of experimental reach. By performing transport simulations on custom-made Wannier tight-binding models, Janus systems are found to exhibit a SOT performance comparable to the most efficient two-dimensional materials, while allowing for field-free perpendicular magnetization switching owing to their reduced in-plane symmetry. Altogether, our findings evidence that magnetic Janus TMDs stand as suitable candidates for ultimate SOT-MRAM devices. Comment: 6 pages |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2404.15134 |
| رقم الأكسشن: | edsarx.2404.15134 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |