Pure spin current injection of single-layer monochalcogenides
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| Publicado en: | Materials Research Express vol. 10, no. 3 (Mar 2023), p. 035003 |
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| Otros Autores: | , , |
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IOP Publishing
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| Acceso en línea: | Citation/Abstract Full Text - PDF |
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| 001 | 2784412191 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2053-1591 | ||
| 024 | 7 | |a 10.1088/2053-1591/acbf99 |2 doi | |
| 035 | |a 2784412191 | ||
| 045 | 2 | |b d20230301 |b d20230331 | |
| 100 | 1 | |a Mendoza, Bernardo S |u Centro de Investigaciones en Óptica, A.C., León, Guanajuato, 37150, Mexico | |
| 245 | 1 | |a Pure spin current injection of single-layer monochalcogenides | |
| 260 | |b IOP Publishing |c Mar 2023 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a We compute the spectrum of pure spin current injection in ferroelectric single-layer SnS, SnSe, GeS, and GeSe. The formalism takes into account the coherent spin dynamics of optically excited conduction states split in energy by spin–orbit coupling. The velocity of the electron’s spins is calculated as a function of incoming photon energy and angle of linearly polarized light within a full electronic band structure scheme using density functional theory. We find peak speeds of 520, 360, 270 and 370 Km s−1 for SnS, SnSe, GeS and GeSe, respectively which are an order of magnitude larger than those found in bulk semiconductors, e.g., GaAs and CdSe. Interestingly, the spin velocity is almost independent of the direction of polarization of light in a range of photon energies. Our results demonstrate that single-layer SnS, SnSe, GeS and GeSe are candidates to produce on demand spin-current in spintronics applications. | |
| 653 | |a Tin selenide | ||
| 653 | |a Photons | ||
| 653 | |a Spintronics | ||
| 653 | |a Cadmium selenides | ||
| 653 | |a Current injection | ||
| 653 | |a Germanium sulfide | ||
| 653 | |a Spin-orbit interactions | ||
| 653 | |a Electron spin | ||
| 653 | |a Linear polarization | ||
| 653 | |a Polarized light | ||
| 653 | |a Ferroelectricity | ||
| 653 | |a Spin dynamics | ||
| 653 | |a Density functional theory | ||
| 653 | |a Orbital mechanics | ||
| 700 | 1 | |a Grillo, Simone |u University of Rome ‘Tor Vergata’ and INFN , Via della Ricerca Scientifica 1, 00133, Rome, Italy | |
| 700 | 1 | |a Juárez-Reyes, Lucila |u Centro de Investigaciones en Óptica, A.C., León, Guanajuato, 37150, Mexico | |
| 700 | 1 | |a Fregoso, Benjamin M |u Department of Physics, Kent State University , Kent, OH 44242, United States of America | |
| 773 | 0 | |t Materials Research Express |g vol. 10, no. 3 (Mar 2023), p. 035003 | |
| 786 | 0 | |d ProQuest |t Materials Science Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/2784412191/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/2784412191/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |