Temperature annealing of tracks induced by ion irradiation of graphite

J. Liu, H. J. Yao, Y. M. Sun, J. L. Duan, M. D. Hou, D. Mo, Z. G. Wang, Y. F. Jin, H. Abe, Z. C. Li, N. Sekimura

Research output: Contribution to journalConference article

19 Citations (Scopus)

Abstract

Highly oriented pyrolytic graphite (HOPG) samples were irradiated by Xe ions of initial kinetic energy of 3 MeV/u. The irradiations were performed at temperatures of 500 and 800 K. Scanning tunneling microscopy (STM) images show that the tracks occasionally have elongated structures under high-temperature irradiation. The track creation yield at 800 K is by three orders of magnitude smaller compared to that obtained during room-temperature irradiation. STM and Raman spectra show that amorphization occurs in graphite samples irradiated at 500 K to higher fluences, but not at 800 K. The obtained experimental results clearly reveal that the irradiation under high temperature causes track annealing.

Original languageEnglish
Pages (from-to)126-129
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume245
Issue number1
DOIs
Publication statusPublished - 2006 Apr 1
EventProceedings of the Sixth International Symposium on Swift Heavy Ions in Matter (SHIM 2005) -
Duration: 2005 May 282005 May 31

Keywords

  • Graphite
  • Heavy ions
  • Raman spectroscopy
  • Scanning tunneling microscopy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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    Liu, J., Yao, H. J., Sun, Y. M., Duan, J. L., Hou, M. D., Mo, D., Wang, Z. G., Jin, Y. F., Abe, H., Li, Z. C., & Sekimura, N. (2006). Temperature annealing of tracks induced by ion irradiation of graphite. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 245(1), 126-129. https://doi.org/10.1016/j.nimb.2005.11.162