Positron Annihilation in Copper Alloys
- 5 January 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 24 (1), 9-13
- https://doi.org/10.1103/physrevlett.24.9
Abstract
The long-slit geometry has been used to measure the angular correlation of annihilation radiation from copper alloys. The alloys 0.975 Cu-0.025 Al, 0.95 Cu-0.05 Al, and 0.77 Cu-0.23 Ni display "necks" in momentum space. In units of the copper Fermi-surface neck, the measured neck radii of 1.3, 1.5, and 0.8, respectively, are consistent with the assumption that the energy-momentum relation is unchanged upon alloying.Keywords
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