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Aki Pulkkinen
Researcher at Lappeenranta University of Technology
Publications - 18
Citations - 128
Aki Pulkkinen is an academic researcher from Lappeenranta University of Technology. The author has contributed to research in topics: Density functional theory & Antiferromagnetism. The author has an hindex of 5, co-authored 16 publications receiving 82 citations.
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Journal ArticleDOI
Coulomb correlation in noncollinear antiferromagnetic α -Mn
Aki Pulkkinen,Bernardo Barbiellini,Bernardo Barbiellini,Johannes Nokelainen,Vladimir V. Sokolovskiy,Vladimir V. Sokolovskiy,Danil R. Baigutlin,Danil R. Baigutlin,Olga N. Miroshkina,Olga N. Miroshkina,Mikhail A. Zagrebin,Mikhail A. Zagrebin,Vasiliy D. Buchelnikov,Vasiliy D. Buchelnikov,Christopher Lane,R. S. Markiewicz,Arun Bansil,Jianwei Sun,Katariina Pussi,Erkki Lähderanta +19 more
TL;DR: In this article, the interplay between magnetic and structural degrees of freedom in elemental Mn is discussed, and the equilibrium volume is shown to be sensitive to magnetic interactions between the Mn atoms.
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Correlation effects on ground-state properties of ternary Heusler alloys: First-principles study
Vasiliy D. Buchelnikov,Vladimir V. Sokolovskiy,Olga N. Miroshkina,M. A. Zagrebin,Johannes Nokelainen,Aki Pulkkinen,Bernardo Barbiellini,Erkki Lähderanta +7 more
TL;DR: In this paper, the strongly constrained and appropriately normed (SCAN) semi-local functional for exchange correlation is deployed to study the ground-state properties of ternary Heusler alloys transforming martensitically.
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Adsorption, diffusion, and vibration of oxygen on Ag ( 110 )
TL;DR: In this article, the authors employed ab initio density functional theory (DFT) to study the adsorption, dissociation, diffusion, and vibration of oxygen on the Ag molecule.
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Exchange-correlation corrections for electronic properties of half-metallic Co2FeSi and nonmagnetic semiconductor CoFeTiAl
Olga N. Miroshkina,Olga N. Miroshkina,Danil R. Baigutlin,Danil R. Baigutlin,Vladimir V. Sokolovskiy,Mikhail A. Zagrebin,Mikhail A. Zagrebin,Aki Pulkkinen,Bernardo Barbiellini,Bernardo Barbiellini,Erkki Lähderanta,Vasiliy D. Buchelnikov,Vasiliy D. Buchelnikov +12 more
TL;DR: In this article, a meta-GGA functional was used to improve the description of the electronic properties of CoFeTiAl and Co 2FeSi and showed that pressure enhances the insulating properties of the two cobalt-based full-Heusler compounds.
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Observation of a uniaxial strain-induced phase transition in the 2D topological semimetal IrTe$_2$.
C. W. Nicholson,M. Rumo,Aki Pulkkinen,Geoffroy Kremer,B. Salzmann,M.-L. Mottas,B. Hildebrand,Thomas Jaouen,Timur K. Kim,Saumya Mukherjee,KeYuan Ma,Matthias Muntwiler,F. von Rohr,Cephise Cacho,Claude Monney +14 more
TL;DR: In this paper, the authors exploit uniaxial strain to stabilize the long-debated structural ground state of the 2D topological semimetal IrTe$_2$, which is hidden in unstrained samples.