CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Clocked single-spin source based on a spin-split superconductor

Niklas Dittmann (Institutionen för mikroteknologi och nanovetenskap, Tillämpad kvantfysik) ; Janine Splettstoesser (Institutionen för mikroteknologi och nanovetenskap, Tillämpad kvantfysik) ; Francesco Giazotto
New Journal of Physics (13672630). Vol. 18 (2016), p. Article Number: 083019 .
[Artikel, refereegranskad vetenskaplig]

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. © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

Nyckelord: Quasiparticle transport; Superconducting single-electron transistor; Superconducting spintronics; Turnstile



Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2016-12-19. Senast ändrad 2017-05-19.
CPL Pubid: 246311

 

Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)