Abstract
The three dimensional electron-positron momentum density in niobium has been reconstructed from measurements of two dimensional angular correlation of positron annihilation radiations (2D-ACAR) followed by the image reconstruction technique based on a direct Fourier transformation. We determined the position of the Fermi surface sheets; Γ-centered hole octahedron, multiply connected jungle-gym arms and TV-centered hole ellipsoids. The Fermi surface topology is in good agreement with the theory.
Original language | English |
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Pages (from-to) | 4494-4502 |
Number of pages | 9 |
Journal | journal of the physical society of japan |
Volume | 59 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1990 Jan 1 |
Keywords
- 2D-ACAR
- Fermi surface
- experiment
- momentum density
- niobium
- positron annihilation
- three dimensional reconstruction
ASJC Scopus subject areas
- Physics and Astronomy(all)