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

M. R. Rahman, L. S. Vlasenko, E. E. Haller, Kohei 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

Fingerprint

Silicon
Lithium
Paramagnetic resonance
electron paramagnetic resonance
lithium
Polarization
nuclei
silicon
polarization
Spin-lattice relaxation
Silicon wafers
spin-lattice relaxation
electron spin
Relaxation time
Phosphorus
phosphorus
relaxation time
wafers
Electrons
symmetry

Keywords

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

ASJC Scopus subject areas

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

Cite this

Electron paramagnetic resonance and dynamic nuclear polarization of 29Si nuclei in lithium-doped silicon. / Rahman, M. R.; Vlasenko, L. S.; Haller, E. E.; Itoh, Kohei M.

In: Physica B: Condensed Matter, Vol. 404, No. 23-24, 15.12.2009, p. 5060-5062.

Research output: Contribution to journalArticle

Rahman, M. R. ; Vlasenko, L. S. ; Haller, E. E. ; Itoh, Kohei M. / Electron paramagnetic resonance and dynamic nuclear polarization of 29Si nuclei in lithium-doped silicon. In: Physica B: Condensed Matter. 2009 ; Vol. 404, No. 23-24. pp. 5060-5062.
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