Online time-differential perturbed angular correlation study with an 19O beam - Residence sites of oxygen atoms in highly oriented pyrolytic graphite

W. Sato, H. Ueno, H. Watanabe, H. Miyoshi, Akihiro Yoshimi, D. Kameda, T. Ito, K. Shimada, J. Kaihara, S. Suda, Y. Kobayashi, A. Shinohara, Y. Ohkubo, K. Asahi

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5 Citations (Scopus)


The online time-differential perturbed angular correlation (TDPAC) method was applied to a study of the physical states of a probe 19F, the β- decay product of 19O (t1/2 = 26.9 s), implanted in highly oriented pyrolytic graphite. The observed magnitude of the electric field gradient at the probe nucleus, {divides}Vzz{divides} = 2.91(17) × 1022 V m-2, suggests that the incident 19O atoms are stabilized at an interlayer position with point group C3v. Exhibiting observed TDPAC spectra having a clear sample-to-detector configuration dependence, we demonstrate the applicability of the present online method with a short-lived radioactive 19O beam.

Original languageEnglish
Pages (from-to)316-322
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number2
Publication statusPublished - Feb 2008
Externally publishedYes



  • Fluorine-19
  • HOPG
  • Ion implantation
  • Online TDPAC
  • Oxygen-19

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

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