3 papers
cond-mat.mtrl-sci2005
Many-body effects observed in the positron annihilation experiment
G. Kontrym-Sznajd, H. Sormann
This paper is devoted to study many-body effects in the positron annihilation experiment, both electron-positron (e-p) and electron-electron (e-e) correlations. Various theories of…
cond-mat.mtrl-sci2002
On the reliability of various enhancement theories for a description of electron-positron densities in metals
H. Sormann, G. Kontrym-Sznajd, R. N. West
Four theoretical approaches to calculate momentum densities of electron-positron annihilation pairs (MDAP) in crystalline solids are confronted with 3D densities reconstructed from…
cond-mat.mtrl-sci2002
Fermi surface of yttrium
G. Kontrym-Sznajd, H. Sormann, R. N. West
Electron-positron momentum densities in Y, reconstructed from two-dimensional angular correlation of annihilation radiation spectra, are compared with the theoretical predictions o…