Autor: |
Niklas Dittmann, Janine Splettstoesser, Francesco Giazotto |
Jazyk: |
angličtina |
Rok vydání: |
2016 |
Předmět: |
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Zdroj: |
New Journal of Physics, Vol 18, Iss 8, p 083019 (2016) |
Druh dokumentu: |
article |
ISSN: |
1367-2630 |
DOI: |
10.1088/1367-2630/18/8/083019 |
Popis: |
We propose an accurate clocked single-spin source for ac-spintronic applications. Our device consists of a superconducting island covered by a ferromagnetic insulator (FI) layer through which it is coupled to superconducting leads. Single-particle transfer relies on the energy gaps and the island's charging energy, and is enabled by a bias and a time-periodic gate voltage. Accurate spin transfer is achieved by the FI layer which polarizes the island, provides spin-selective tunneling barriers and improves the precision by suppressing Andreev reflection. We analyze realistic material combinations and experimental requirements which allow for a clocked spin current in the MHz regime. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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