Electron paramagnetic resonance and dynamic nuclear polarization of 29Si nuclei in lithium-doped silicon

M. R. Rahman, L. S. Vlasenko, E. E. Haller, K. M. Itoh

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Electron paramagnetic resonance (EPR) and dynamic nuclear polarization (DNP) experiments with Li-doped FZ silicon wafers are reported. The Li related EPR spectrum of tetrahedral symmetry was detected clearly without external stress even at low temperatures (T<5 K) implying that the Li electron spin-lattice relaxation time is much shorter than that of other shallow donors, e.g. phosphorus. The solid-effect was found to be responsible for the DNP and the polarization was enhanced by a factor of 87 at 3.2 K to reach 0.17%.

Original languageEnglish
Pages (from-to)5060-5062
Number of pages3
JournalPhysica B: Condensed Matter
Volume404
Issue number23-24
DOIs
Publication statusPublished - 2009 Dec 15

Keywords

  • Dynamic nuclei polarization
  • Electron paramagnetic resonance
  • Lithium donor
  • Silicon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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