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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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
Volume266
Issue number2
DOIs
Publication statusPublished - Feb 2008
Externally publishedYes

Fingerprint

Graphite
pyrolytic graphite
angular correlation
oxygen atoms
Oxygen
Point groups
Atoms
Correlation methods
probes
interlayers
Electric fields
Detectors
gradients
nuclei
electric fields
detectors
decay
products
configurations
atoms

Keywords

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

ASJC Scopus subject areas

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

Cite this

Online time-differential perturbed angular correlation study with an 19O beam - Residence sites of oxygen atoms in highly oriented pyrolytic graphite. / Sato, W.; Ueno, H.; Watanabe, H.; Miyoshi, H.; Yoshimi, Akihiro; Kameda, D.; Ito, T.; Shimada, K.; Kaihara, J.; Suda, S.; Kobayashi, Y.; Shinohara, A.; Ohkubo, Y.; Asahi, K.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 266, No. 2, 02.2008, p. 316-322.

Research output: Contribution to journalArticle

Sato, W. ; Ueno, H. ; Watanabe, H. ; Miyoshi, H. ; Yoshimi, Akihiro ; Kameda, D. ; Ito, T. ; Shimada, K. ; Kaihara, J. ; Suda, S. ; Kobayashi, Y. ; Shinohara, A. ; Ohkubo, Y. ; Asahi, K. / Online time-differential perturbed angular correlation study with an 19O beam - Residence sites of oxygen atoms in highly oriented pyrolytic graphite. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2008 ; Vol. 266, No. 2. pp. 316-322.
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AU - Sato, W.

AU - Ueno, H.

AU - Watanabe, H.

AU - Miyoshi, H.

AU - Yoshimi, Akihiro

AU - Kameda, D.

AU - Ito, T.

AU - Shimada, K.

AU - Kaihara, J.

AU - Suda, S.

AU - Kobayashi, Y.

AU - Shinohara, A.

AU - Ohkubo, Y.

AU - Asahi, K.

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AB - 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.

KW - Fluorine-19

KW - HOPG

KW - Ion implantation

KW - Online TDPAC

KW - Oxygen-19

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