تقرير
Direct Evidence for Suppression of the Kondo Effect due to Pure Spin Current
| العنوان: | Direct Evidence for Suppression of the Kondo Effect due to Pure Spin Current |
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| المؤلفون: | Hamaya, K., Kurokawa, T., Oki, S., Yamada, S., Kanashima, T., Taniyama, T. |
| المصدر: | Phys. Rev. B 94, 140401(R) (2016) |
| سنة النشر: | 2016 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We study the effect of a pure spin current on the Kondo singlet in a diluted magnetic alloy using non-local lateral spin valve structures with highly spin polarized Co2FeSi electrodes. Temperature dependence of the non-local spin signals shows a sharp reduction with decreasing temperature, followed by a plateau corresponding to the low temperature Fermi liquid regime below the Kondo temperature (TK). The spin diffusion length of the Kondo alloy is found to increase with the evolution of spin accumulation. The results are in agreement with the intuitive description that the Kondo singlet cannot survive any more in sufficiently large spin accumulation even below TK. Comment: 5 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.94.140401 |
| URL الوصول: | http://arxiv.org/abs/1603.08599 |
| رقم الأكسشن: | edsarx.1603.08599 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.94.140401 |
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