Effect of Cu Intercalation Layer on the Enhancement of Spin-to-Charge Conversion in Py/Cu/Bi2Se3
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Effect of Cu Intercalation Layer on the Enhancement of Spin-to-Charge Conversion in Py/Cu/Bi2Se3
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| Автор |
Su, S. H.
Chong, C. -W. Lee, J. -C. Chen, Y. -C. Marchenkov, V. V. Huang, J. -C. A. |
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| Тематика |
INVERSE EDELSTEIN EFFECT
SPIN PUMPING SPIN-TO-CHARGE CONVERSION TOPOLOGICAL INSULATOR |
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| Описание |
The spin-to-charge conversion in Permalloy (Py)/Cu/Bi2Se3 is tunable by changing the Cu layer thickness. The conversion rate was studied using the spin pumping technique. The inverse Edelstein effect (IEE) length λIEE is found to increase up to ~2.7 nm when a 7 nm Cu layer is introduced. Interestingly, the maximized λIEE is obtained when the effective spin-mixing conductance (and thus Js) is decreased due to Cu insertion. The monotonic increase in λIEE with decreasing Js suggests that the IEE relaxation time (τ) is enhanced due to the additional tunnelling barrier (Cu layer) that limits the interfacial transmission rate. The results demonstrate the importance of interface engineering in the magnetic heterostructure of Py/topological insulators (TIs), the key factor in optimizing spin-to-charge conversion efficiency. © 2022 by the authors.
Ministry of Science and Technology, Taiwan, MOST, (109-2112-M-006-019-MY3, 110-2124-M-006-008, 111-2124-M-006-008) We would like to acknowledge the financial support from the Taiwan Ministry of Science and Technology under contracts MOST Grants No. 111-2124-M-006-008, 110-2124-M-006-008, and 109-2112-M-006-019-MY3. |
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| Дата |
2024-04-08T11:06:46Z
2024-04-08T11:06:46Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Su, SH, Chong, CW, Lee, JC, Chen, YC, Marchenkov, VV & Huang, JCA 2022, 'Effect of Cu Intercalation Layer on the Enhancement of Spin-to-Charge Conversion in Py/Cu/Bi2Se3', Nanomaterials, Том. 12, № 20, 3687. https://doi.org/10.3390/nano12203687
Su, S. H., Chong, C. W., Lee, J. C., Chen, Y. C., Marchenkov, V. V., & Huang, J. C. A. (2022). Effect of Cu Intercalation Layer on the Enhancement of Spin-to-Charge Conversion in Py/Cu/Bi2Se3. Nanomaterials, 12(20), [3687]. https://doi.org/10.3390/nano12203687 2079-4991 Final All Open Access; Gold Open Access; Green Open Access https://www.mdpi.com/2079-4991/12/20/3687/pdf?version=1666770566 https://www.mdpi.com/2079-4991/12/20/3687/pdf?version=1666770566 http://elar.urfu.ru/handle/10995/131347 10.3390/nano12203687 85140915311 000875166600001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Nanomaterials
Nanomaterials |
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