Nuclear magnetic resonance linewidth and spin diffusion in 29Si isotopically controlled silicon

Hiroshi Hayashi, Kohei M. Itoh, Leonid S. Vlasenko

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A nuclear magnetic resonance (NMR) study was performed with n -type silicon single crystals containing S 29 i isotope abundance f ranges from 1.2% to 99.2%. The nuclear spin diffusion coefficient D has been determined from the linewidth of significantly enhanced S 29 i NMR signals utilizing a developed dynamic nuclear polarization (DNP) method. The S 29 i NMR linewidth depends linearly on f, at least when f<10%, and approaches ∝ f1/2 dependence when f>50%. The estimated S 29 i nuclear spin diffusion time Tsd between phosphorus atoms used for DNP is more than ten times shorter than the nuclear polarization time T1p of S 29 i nuclei around phosphorus. Therefore, the regime of "rapid spin diffusion" is realized in the DNP experiments.

Original languageEnglish
Article number153201
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number15
DOIs
Publication statusPublished - 2008 Oct 6

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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