Spin relaxation in semiconductor quantum rings and dots-a comparative study

Elzbieta Zipper, Marcin Kurpas, Janusz Sadowski, Maciej M. Maska

Research output: Contribution to journalArticlepeer-review

26 Citations (SciVal)

Abstract

We calculate spin relaxation times due to spin-orbit-mediated electron-phonon interactions for experimentally accessible semiconductor quantum ring and dot architectures. We elucidate the differences between the two systems due to different confinement. The estimated relaxation times (at B = 1 T) are in the range between a few milliseconds to a few seconds. This high stability of spin in a quantum ring allows us to test it as a spin qubit. A brief discussion of quantum state manipulations with such a qubit is presented.
Original languageEnglish
JournalJournal of Physics: Condensed Matter
Volume23
Issue number11
DOIs
Publication statusPublished - 2011

Subject classification (UKÄ)

  • Natural Sciences
  • Physical Sciences

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