Sub-second electron spin lifetimes in quantum dots at zero applied magnetic field due to alignment of QD nuclei

R. Oulton, S. Yu Verbin, T. Auer, R. V. Cherbunin, A. Greilich, D. R. Yakovlev, M. Bayer, D. Reuter, A. Wieck

Research output

13 Citations (Scopus)

Abstract

A key to ultra-long electron spin memory in quantum dots (QDs) at zero magnetic field is polarization of the nuclei, such that the electron spin is stabilized along the nuclear magnetic field. We demonstrate that spin-polarized electrons in n-doped QDs align the nuclear field via hyperfine interaction. A feedback onto the electrons occurs, leading to stabilization of polarization, for which spin memory is retained over 0.2 seconds.

Original languageEnglish
Pages (from-to)3922-3927
Number of pages6
JournalPhysica Status Solidi (B) Basic Research
Volume243
Issue number15
DOIs
Publication statusPublished - Dec 2006

Fingerprint

electron spin
Semiconductor quantum dots
alignment
quantum dots
Magnetic fields
life (durability)
nuclei
Electrons
polarization
magnetic fields
electrons
stabilization
Polarization
Data storage equipment
Stabilization
interactions
Feedback

Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Oulton, R. ; Verbin, S. Yu ; Auer, T. ; Cherbunin, R. V. ; Greilich, A. ; Yakovlev, D. R. ; Bayer, M. ; Reuter, D. ; Wieck, A. / Sub-second electron spin lifetimes in quantum dots at zero applied magnetic field due to alignment of QD nuclei. In: Physica Status Solidi (B) Basic Research. 2006 ; Vol. 243, No. 15. pp. 3922-3927.
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Sub-second electron spin lifetimes in quantum dots at zero applied magnetic field due to alignment of QD nuclei. / Oulton, R.; Verbin, S. Yu; Auer, T.; Cherbunin, R. V.; Greilich, A.; Yakovlev, D. R.; Bayer, M.; Reuter, D.; Wieck, A.

In: Physica Status Solidi (B) Basic Research, Vol. 243, No. 15, 12.2006, p. 3922-3927.

Research output

TY - JOUR

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AU - Oulton, R.

AU - Verbin, S. Yu

AU - Auer, T.

AU - Cherbunin, R. V.

AU - Greilich, A.

AU - Yakovlev, D. R.

AU - Bayer, M.

AU - Reuter, D.

AU - Wieck, A.

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