Vacancy formation energy of metals determined by using positron age-momentum correlation technique

Naoki Suzuki, Yasuyoshi Nagai, Yoshiko Itoh, Akira Goto, Toshio Hyodo

Research output: Contribution to journalConference article

Abstract

The vacancy formation energy Ev of Zn and In are determined by using the positron age-momentum correlation (AMOC) technique. The S-parameter Sv for the trapped positrons that is necessary for the analysis is obtained by extrapolating the time dependent S-parameter S(t). Thus it is not necessary to heat up the sample so high that all positrons are trapped in vacancies. The Ev of Zn thus obtained was in good agreement with the reported value. Also we obtained the Ev of In, for which the previously reported values are scattered over a considerable range.

Original languageEnglish
Pages (from-to)185-188
Number of pages4
JournalMaterials Science Forum
Volume363-365
DOIs
Publication statusPublished - 2001 Jan 1
Event12th International Conference on Positron Annihilation - Munchen, Germany
Duration: 2000 Aug 62000 Aug 12

Keywords

  • AMOC
  • Energy
  • In
  • Positron trapping
  • Time-dependent S-parameter
  • Vacancy formation
  • Zn

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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