143 citations · 196 across the 3 of their papers we have counts for
4 papers
Modeling the momentum distributions of annihilating electron-positron pairs in solids
I. Makkonen, M. Hakala, M. J. Puska
Measuring the Doppler broadening of the positron annihilation radiation or the angular correlation between the two annihilation gamma quanta reflects the momentum distribution of e…
Testing of two-dimensional local approximations in the current-spin and spin-density-functional theories
H. Saarikoski, E. Räsänen, S. Siljamäki +3
We study a model quantum dot system in an external magnetic field by using both the spin-density-functional theory and the current-spin-density-functional theory. The theories are…
MIKA: a multigrid-based program package for electronic structure calculations
T. Torsti, M. Heiskanen, M. J. Puska +1
A general real-space multigrid algorithm MIKA (Multigrid Instead of the K-spAce) for the self-consistent solution of the Kohn-Sham equations appearing in the state-of-the-art elect…
First-Principles Calculations of Positron Annihilation in Solids
B. Barbiellini, M. Hakala, R. M. Nieminen +1
We present first-principles approaches based on density functional theory for calculating positron states and annihilation characteristics in condensed matter. The treatment of the…