Clocked single-spin source based on a spin-split superconductor
Artikel i vetenskaplig tidskrift, 2016

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.

Superconducting spintronics


Quasiparticle transport

Superconducting single-electron transistor


Niklas Dittmann

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Janine Splettstoesser

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Francesco Giazotto

Scuola Normale Superiore di Pisa

New Journal of Physics

1367-2630 (ISSN)

Vol. 18 8 Article Number: 083019 - 083019


Nanovetenskap och nanoteknik (SO 2010-2017, EI 2018-)



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