Networks of quantum nanorings: Programmable spintronic devices

Péter Földi, Orsolya Kálmán, Mihály G. Benedict, F. M. Peeters

Research output: Article

65 Citations (Scopus)

Abstract

An array of quantum rings with local (ring by ring) modulation of the spin orbit interaction (SOI) can lead to novel effects in spin state transformation of electrons. It is shown that already small (3 × 3, 5 × 5) networks are remarkably versatile from this point of view: Working in a given network geometry, the input current can be directed to any of the output ports, simply by changing the SOI strengths by external gate voltages. Additionally, the same network with different SOI strengths can be completely analogous to the Stern-Gerlach device, exhibiting spatial-spin entanglement.

Original languageEnglish
Pages (from-to)2556-2558
Number of pages3
JournalNano Letters
Volume8
Issue number8
DOIs
Publication statusPublished - aug. 1 2008

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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