On the reliability of linear band structure methods (2007)
Kontrym-Sznajd, G., Samsel-Czekala, M., Grechnev, G. E., Sormann, H.
We discuss an efficiency of various band structure algorithms in determining the Fermi surface (FS) of the paramagnetic ErGa3. The linear muffin-tin orbital (LMTO) in the atomic sphere approximation...
Observation of a strongly nested Fermi surface in the shape-memory alloy Ni[0.62]Al[0.38] (2006)
Dugdale, S. B., Watts, R. J., Laverock, J., Major, Zs., Alam, M. A., Samsel-Czekala, M., ...
The Fermi surface topology of the shape-memory alloy Ni[0.62]Al[0.38] has been determined using Compton scattering. A large area of this Fermi surface can be made to nest with other areas by...
Different ways of dealing with Compton scattering and positron annihilation experimental data (2005)
Kontrym-Sznajd, G., Samsel-Czekala, M.
Different ways of dealing with one-dimensional (1D) spectra, measured e.g. in the Compton scattering or angular correlation of positron annihilation radiation (ACAR) experiments are presented. On the...
Influence of experimental noise on densities reconstructed from line projections (2005)
Samsel-Czekala, M., Boguszewicz, L.
The influence of experimental noise on densities rho(p) reconstructed by the Cormack method from their line projections, e.g. 2D ACAR spectra, is investigated. Simulations of statistical noise are...
Kontrym-Sznajd, G., Samsel-Czekala, M., Biasini, M., Kubo, Y.
A new method (NM) for filtering three-dimensional reconstructed densities is proposed. The algorithm is tested with simulated spectra and employed to study the electronic structure of the rare-earth...
Fermi-surface mapping from Compton profiles: Application to beryllium (2003)
Kontrym-Sznajd, G., Samsel-Czekala, M., Huotari, S., Hamalainen, K., Manninen, S.
The two-dimensional momentum density of Be on the basal GMK plane, i.e. the line integral of the three-dimensional momentum density along the c-axis, is reconstructed via the Cormack method from both...
Electron momentum density in Cu0.9Al0.1 (2002)
Samsel-Czekala, M., Kontrym-Sznajd, G., Doring, G., Schulke, W., Kwiatkowska, J., Maniawski, F., ...
A reconstruction technique based on the solution of the Radon transform in terms of Jacobi polynomials is used to obtain the 3D electron momentum density rho(p) from nine high-resolution Compton...
Electron momentum density in yttrium (2002)
Kontrym-Sznajd, G., Samsel-Czekala, M., Pietraszko, A., Sormann, H., Manninen, S., Huotari, S., ...
A simultaneous analysis of high-resolution directional Compton profiles and two-dimensional angular correlation of positron annihilation experimental data has been performed by studying both a...
Special directions in the Brillouin zone (2002)
Kontrym-Sznajd, G., Jura, A., Samsel-Czekala, M.
Rules are given for determining special directions in the Brillouin zone which optimize the descrip-tion of various physical quantities with Gamma1 type symmetry. We consider the cubic, hexagonal,...
Reconstructed Momentum Density and Fermi Surface in Cu0.9Al0.1 (2002)
Samsel-Czekala, M., Kontrym-Sznajd, G., Doring, G., Schulke, W., Kaprzyk, S., Bansil, A., ...
A reconstruction technique based on Radon transforms is used to obtain 3D electron momentum density rho(p) using nine recently measured high-resolution Compton profiles (CPs) from a Cu_{0.9}Al_{0.1}...
Fermi surface of Mg and Cd (2002)
Jura, A., Kontrym-Sznajd, G., Samsel-Czekala, M.
We present three-dimensional (3D) electron-positron momentum densities in Mg and Cd, reconstructed from 2D angular correlation of annihilation radiation data. By folding densities from the extended...