Current-induced nuclear-spin activation in a two-dimensional electron gas

C. R. Dean, B. A. Piot, G. Gervais, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Electrically detected nuclear magnetic resonance was studied in detail in a two-dimensional electron gas as a function of current bias and temperature. We show that applying a relatively modest dc-current bias Idc 0.5 μA can induce an enhanced nuclear-spin signal compared with the signal obtained under similar thermal equilibrium conditions at zero current bias. Our observations suggest that dynamic nuclear-spin polarization by small current flow is possible in a two-dimensional electron gas, allowing for easy manipulation of the nuclear spin by simple switching of a dc current.

Original languageEnglish (US)
Article number153301
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number15
StatePublished - Oct 1 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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