Topologically Driven Spin-Orbit Torque in Dirac Matter
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866908578467545088 |
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| author | Dueñas, Joaquín Medina García, José H. Roche, Stephan |
| author_facet | Dueñas, Joaquín Medina García, José H. Roche, Stephan |
| contents | We unveil novel spin-orbit torque mechanisms driven by topological edge states in magnetic graphene-based devices. Within the energy gap, a damping-like torque plateau emerges within the quantum anomalous Hall phase upon breaking particle-hole symmetry, while for energies at the spin-split Dirac points located within the bands, a large damping-like torque develops as a result of a vanishing Fermi contour. Such torques are tunable by the degree of spin-pseudospin entanglement dictated by proximity-induced spin-orbit coupling terms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_16359 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Topologically Driven Spin-Orbit Torque in Dirac Matter Dueñas, Joaquín Medina García, José H. Roche, Stephan Mesoscale and Nanoscale Physics We unveil novel spin-orbit torque mechanisms driven by topological edge states in magnetic graphene-based devices. Within the energy gap, a damping-like torque plateau emerges within the quantum anomalous Hall phase upon breaking particle-hole symmetry, while for energies at the spin-split Dirac points located within the bands, a large damping-like torque develops as a result of a vanishing Fermi contour. Such torques are tunable by the degree of spin-pseudospin entanglement dictated by proximity-induced spin-orbit coupling terms. |
| title | Topologically Driven Spin-Orbit Torque in Dirac Matter |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2408.16359 |