Interaction of muons with H2/H3-centres in diamond

I. Z. Machi, S. H. Connell, J. P.F. Sellschop, K. Bharuth-Ram

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We report on transverse field muon spin rotation measurements on a nitrogen-rich type Ia diamond, both before and after the conversion of some of the aggregated nitrogen centres to nitrogen-vacancy complexes known as H2/H3-centres. The prompt fractions f and the spin relaxation rates λ were determined for the diamagnetic (μd) and the paramagnetic (MuT) states in the temperature range 10-300 K. The production of the nitrogen-vacancy complexes had little effect on the parameters of the MuT state for which f and λ remained unchanged at approximately 30% and 4 μs-1, respectively. For the μd state, on the other hand, the formation of the H2/H3-centres resulted in an increase of the prompt fraction from 10(2)% to 20(3)%, and (for the first time) the spin relaxation rate showed a non-zero value of 0.020(3) μs-1. These results show evidence of strong μd interactions with the nitrogen-vacancy complexes in diamond, and suggest a more complex structure for this state than a bare μ+.

Original languageEnglish
Pages (from-to)727-730
Number of pages4
JournalHyperfine Interactions
Issue number3-8
Publication statusPublished - 2001
Externally publishedYes


  • Diamond
  • H2/H3-centres
  • Muon

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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