Resolving spin currents and spin densities generated by charge-spin interconversion in systems with reduced crystal symmetry
The ability to control the generation of spins in arbitrary directions is a long-sought goal in spintronics. Charge-to-spin interconversion (CSI) phenomena depend strongly on symmetry. Systems with reduced crystal symmetry allow anisotropic CSI with unconventional components, where charge and spin c...
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| creator | Camosi, Lorenzo Svetlik, Josef Costache, Marius V Williams, Savero Torres Iván Fernández Aguirre Marinova, Vera Dimitrov, Dimitre Gospodinov, Marin Sierra, Juan F Valenzuela, Sergio O |
| description | The ability to control the generation of spins in arbitrary directions is a long-sought goal in spintronics. Charge-to-spin interconversion (CSI) phenomena depend strongly on symmetry. Systems with reduced crystal symmetry allow anisotropic CSI with unconventional components, where charge and spin currents and the spin polarization are not mutually perpendicular to each other. Here, we demonstrate experimentally that the CSI in graphene-WTe2 induces spins with components in all three spatial directions. By performing multi-terminal nonlocal spin precession experiments, with specific magnetic field orientations, we discuss how to disentangle the CSI from the spin Hall and inverse spin galvanic effects. |
| doi_str_mv | 10.48550/arxiv.2212.11691 |
| format | Article |
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Charge-to-spin interconversion (CSI) phenomena depend strongly on symmetry. Systems with reduced crystal symmetry allow anisotropic CSI with unconventional components, where charge and spin currents and the spin polarization are not mutually perpendicular to each other. Here, we demonstrate experimentally that the CSI in graphene-WTe2 induces spins with components in all three spatial directions. By performing multi-terminal nonlocal spin precession experiments, with specific magnetic field orientations, we discuss how to disentangle the CSI from the spin Hall and inverse spin galvanic effects.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2212.11691</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Graphene ; Physics - Mesoscale and Nanoscale Physics ; Polarization (spin alignment) ; Spintronics ; Symmetry</subject><ispartof>arXiv.org, 2022-12</ispartof><rights>2022. 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Charge-to-spin interconversion (CSI) phenomena depend strongly on symmetry. Systems with reduced crystal symmetry allow anisotropic CSI with unconventional components, where charge and spin currents and the spin polarization are not mutually perpendicular to each other. Here, we demonstrate experimentally that the CSI in graphene-WTe2 induces spins with components in all three spatial directions. By performing multi-terminal nonlocal spin precession experiments, with specific magnetic field orientations, we discuss how to disentangle the CSI from the spin Hall and inverse spin galvanic effects.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2212.11691</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Graphene Physics - Mesoscale and Nanoscale Physics Polarization (spin alignment) Spintronics Symmetry |
| title | Resolving spin currents and spin densities generated by charge-spin interconversion in systems with reduced crystal symmetry |
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