2013/04/19 by Josef Andreas Weber, J A Weber, Peter Boni +7 · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Annihilation #Annihilation radiation #Crystallography and Radiation Phenomena #Fermi Gamma-ray Space Telescope #Muon and positron interactions and applications #Positron #Positron annihilation #Spectrometer #cond-mat.str-el
paper · pdf · doi:10.1088/1742-6596/443/1/012092
arxiv created 2013/04/19 · openalex publication_date 2013/06/10 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The two-dimensional measurement of the angular correlation of the positron annihilation radiation (2D-ACAR) is a powerful tool to investigate the electronic structure of materials. Here we report on the first results obtained with the new 2D-ACAR spectrometer at the Technische Universitat München (TUM). To get experience in processing and interpreting 2D-ACAR data, first measurements were made on copper. The obtained data are treated with standard procedures and compared to theoretical calculations. It is shown that the measurements are in good agreement with the calculations and that the Fermi surface can be entirely reconstructed using three projections only.