Quadrupolar effects on nuclear spins of neutral arsenic donors in silicon

David P. Franke, Moritz P D Pflüger, Pierre André Mortemousque, Kohei M Itoh, Martin S. Brandt

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present electrically detected electron nuclear double resonance measurements of the nuclear spins of ionized and neutral arsenic donors in strained silicon. In addition to a reduction of the hyperfine coupling, we find significant quadrupole interactions of the nuclear spin of the neutral donors of the order of 10 kHz. By comparing these to the quadrupole shifts due to crystal fields measured for the ionized donors, we identify the effect of the additional electron on the electric field gradient at the nucleus. This extra component is expected to be caused by the coupling to electric field gradients created due to changes in the electron wave function under strain.

Original languageEnglish
Article number161303
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume93
Issue number16
DOIs
Publication statusPublished - 2016 Apr 25

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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