Analysis of momentum distribution of bloch-positronium in solids

Y. Nagai, M. Kakimoto, H. Ikari, T. Hyodo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


An analysis of momentum distribution of delocalized Bloch-positronium in solids measured by 1D-ACAR method is presented. The momentum distribution of the positronium, which is proportional to the energy integration of the spectral function weighted with Bose distribution, is expressed in terms of the effective mass and the deformation potential of the positronium. A Simple expression of the positronium peak shape in the 1D-ACAR spectrum is obtained by integrating over the two direction of momenta prior to the energy integration. This analysis is applied to the experimental positronium momentum distributions in SiO2 and MgF2.

Original languageEnglish
Pages (from-to)596-598
Number of pages3
JournalMaterials Science Forum
Publication statusPublished - 1997
Externally publishedYes


  • 1D-ACAR
  • Delocalized Positronium
  • Momentum Distribution
  • Spectral Function

ASJC Scopus subject areas

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


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