M
Mikko Hakala
Researcher at University of Helsinki
Publications - 75
Citations - 2382
Mikko Hakala is an academic researcher from University of Helsinki. The author has contributed to research in topics: Compton scattering & Density functional theory. The author has an hindex of 28, co-authored 75 publications receiving 2206 citations. Previous affiliations of Mikko Hakala include Helsinki University of Technology & Pierre-and-Marie-Curie University.
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Theoretical and experimental study of positron annihilation with core electrons in solids
Matti Alatalo,Bernardo Barbiellini,Mikko Hakala,H. Kauppinen,T. Korhonen,Martti J. Puska,Kimmo Saarinen,P. Hautojärvi,Risto M. Nieminen +8 more
TL;DR: A theory for calculating the momentum distribution of annihilating positron-electron pairs in solids and the comparison of the theoretical and experimental spectra for alloys and vacancy defects tests the theoretical description for the positron distribution in delocalized and localized states.
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Microscopic structure of water at elevated pressures and temperatures
Christoph J. Sahle,Christian Sternemann,Christian Schmidt,Susi Lehtola,Sandro Jahn,Laura Simonelli,Simo Huotari,Mikko Hakala,Tuomas Pylkkänen,Alexander Nyrow,Kolja Mende,Metin Tolan,Keijo Hämäläinen,Max Wilke +13 more
TL;DR: According to the simulations, distortions of the hydrogen-bond network increase dramatically when temperature and pressure increase to the supercritical regime and the average number of hydrogen bonds per molecule decreases.
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Momentum distributions of electron-positron pairs annihilating at vacancy clusters in Si
TL;DR: In this article, the momentum densities of electron-positron pairs annihilating at various vacancy clusters in Si were calculated and compared quantitatively with experimental data, showing a systematic increase in the S and a decrease in the W parameter as the size of the vacancy increases.
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Modeling the momentum distributions of annihilating electron-positron pairs in solids
TL;DR: In this paper, a computational scheme for calculating momentum distributions of electron-positron pairs annihilating in solids is presented, based on the all-electron projector augmented-wave method, and atomic orbitals are used to describe the core states.
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Native defects and self-diffusion in GaSb
TL;DR: In this paper, the structures and the formation energies of the stable defects and estimate the defect concentrations under different growth conditions were reported and a metastable state was observed for the SbGa antisite.