Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures
A spin-polarized current source using nonmagnetic layered materials is promising for next-generation all-electrical spintronic science and technology. Here we electrically created spin polarization in a layered semimetal TaTe_{2} via the charge-spin conversion process. Using a hybrid device of TaTe_...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-08-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.033204 |
| _version_ | 1797211316889321472 |
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| author | Anamul Md. Hoque Dmitrii Khokhriakov Bogdan Karpiak Saroj P. Dash |
| author_facet | Anamul Md. Hoque Dmitrii Khokhriakov Bogdan Karpiak Saroj P. Dash |
| author_sort | Anamul Md. Hoque |
| collection | DOAJ |
| description | A spin-polarized current source using nonmagnetic layered materials is promising for next-generation all-electrical spintronic science and technology. Here we electrically created spin polarization in a layered semimetal TaTe_{2} via the charge-spin conversion process. Using a hybrid device of TaTe_{2} in a van der Waals heterostructure with graphene, the spin polarization in TaTe_{2} is efficiently injected and detected by nonlocal spin-switch, Hanle spin precession, and inverse spin Hall effect measurements. Systematic experiments at different bias currents and gate voltages in a vertical geometry prove the TaTe_{2} as a nonmagnetic spin source at room temperature. These findings demonstrate the possibility of making an all-electrical spintronic device in a two-dimensional van der Waals heterostructure, which can be essential building blocks in energy-efficient spin-orbit technology. |
| first_indexed | 2024-04-24T10:24:34Z |
| format | Article |
| id | doaj.art-1dfb73d421f04d14bb15329bb1ebb9c7 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:24:34Z |
| publishDate | 2020-08-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-1dfb73d421f04d14bb15329bb1ebb9c72024-04-12T16:58:26ZengAmerican Physical SocietyPhysical Review Research2643-15642020-08-012303320410.1103/PhysRevResearch.2.033204Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructuresAnamul Md. HoqueDmitrii KhokhriakovBogdan KarpiakSaroj P. DashA spin-polarized current source using nonmagnetic layered materials is promising for next-generation all-electrical spintronic science and technology. Here we electrically created spin polarization in a layered semimetal TaTe_{2} via the charge-spin conversion process. Using a hybrid device of TaTe_{2} in a van der Waals heterostructure with graphene, the spin polarization in TaTe_{2} is efficiently injected and detected by nonlocal spin-switch, Hanle spin precession, and inverse spin Hall effect measurements. Systematic experiments at different bias currents and gate voltages in a vertical geometry prove the TaTe_{2} as a nonmagnetic spin source at room temperature. These findings demonstrate the possibility of making an all-electrical spintronic device in a two-dimensional van der Waals heterostructure, which can be essential building blocks in energy-efficient spin-orbit technology.http://doi.org/10.1103/PhysRevResearch.2.033204 |
| spellingShingle | Anamul Md. Hoque Dmitrii Khokhriakov Bogdan Karpiak Saroj P. Dash Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures Physical Review Research |
| title | Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures |
| title_full | Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures |
| title_fullStr | Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures |
| title_full_unstemmed | Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures |
| title_short | Charge-spin conversion in layered semimetal TaTe_{2} and spin injection in van der Waals heterostructures |
| title_sort | charge spin conversion in layered semimetal tate 2 and spin injection in van der waals heterostructures |
| url | http://doi.org/10.1103/PhysRevResearch.2.033204 |
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