All Stories

  1. Optimizing density-functional simulations for two-dimensional metals

    Article • Physical Review Materials, December 2022, American Physical Society (APS)

    Dr Pekka Koskinen

  2. The focus and timing of gaze matters: Investigating collaborative knowledge construction in a simulation-based environment by combined video and eye tracking

    Article • Frontiers in Education, October 2022, Frontiers

    Dr Pekka Koskinen

  3. Limits of lateral expansion in two-dimensional materials with line defects

    Article • Physical Review Materials, September 2021, American Physical Society (APS)

    Dr Pekka Koskinen

  4. What do we do when we analyse the temporal aspects of computer-supported collaborative learning? A systematic literature review

    Article • Educational Research Review, June 2021, Elsevier

    Dr Pekka Koskinen

  5. Ultrastiff graphene

    Article • npj 2D Materials and Applications, May 2021, Springer Science + Business Media

    Dr Pekka Koskinen

  6. Rippling of two-dimensional materials by line defects

    Article • August 2020, American Physical Society (APS)

    Dr Pekka Koskinen

  7. Free-standing 2D metals from binary metal alloys

    Article • AIP Advances, June 2020, American Institute of Physics

    Dr Pekka Koskinen

  8. Making Graphene Luminescent by Direct Laser Writing

    Article • The Journal of Physical Chemistry C, March 2020, American Chemical Society (ACS)

    Dr Pekka Koskinen

  9. The potential of temporal analysis: Combining log data and lag sequential analysis to investigate temporal differences between scaffolded and non-scaffolded group inquiry-based learning processes

    Article • Computers & Education, January 2020, Elsevier

    Dr Pekka Koskinen

  10. Stability limits of elemental 2D metals in graphene pores

    Article • Nanoscale, January 2019, Royal Society of Chemistry

    Dr Pekka Koskinen

  11. Optically Forged Diffraction-Unlimited Ripples in Graphene

    Article • The Journal of Physical Chemistry Letters, October 2018, American Chemical Society (ACS)

    Dr Andreas Johansson, Dr Pekka Koskinen

  12. Visualising the temporal aspects of collaborative inquiry-based learning processes in technology-enhanced physics learning

    Article • International Journal of Science Education, August 2018, Taylor & Francis

    Raija Hämäläinen, Joni Lämsä, Dr Pekka Koskinen

  13. Primetime learning: collaborative and technology-enhanced studying with genuine teacher presence

    Article • International Journal of STEM Education, May 2018, Springer Science + Business Media

    Dr Pekka Koskinen

  14. Correction to “Self-Consistent Charge Density-Functional Tight-Binding Parameterization for Pt–Ru Alloys”

    Article • The Journal of Physical Chemistry A, April 2018, American Chemical Society (ACS)

    Dr Pekka Koskinen

  15. Atlas for the properties of elemental two-dimensional metals

    Article • January 2018, American Physical Society (APS)

    Dr Pekka Koskinen

  16. Optical Forging of Graphene into Three-Dimensional Shapes

    Article • Nano Letters, September 2017, American Chemical Society (ACS)

    Dr Andreas Johansson, Dr Pekka Koskinen

  17. Growth of two-dimensional Au patches in graphene pores: A density-functional study

    Article • Computational Materials Science, April 2017, Elsevier

    Dr Pekka Koskinen

  18. Self-Consistent Charge Density-Functional Tight-Binding Parametrization for Pt–Ru Alloys

    Article • The Journal of Physical Chemistry A, March 2017, American Chemical Society (ACS)

    Dr Pekka Koskinen

  19. From Seeds to Islands: Growth of Oxidized Graphene by Two-Photon Oxidation

    Article • The Journal of Physical Chemistry C, October 2016, American Chemical Society (ACS)

    Dr Andreas Johansson, Dr Pekka Koskinen

  20. Quantum Simulations of One-Dimensional Nanostructures under Arbitrary Deformations

    Article • Physical Review Applied, September 2016, American Physical Society (APS)

    Dr Pekka Koskinen

  21. Limits of stability in supported graphene nanoribbons subject to bending

    Article • June 2016, American Physical Society (APS)

    Dr Pekka Koskinen

  22. Peeling of multilayer graphene creates complex interlayer sliding patterns

    Article • Physical Review B, September 2015, American Physical Society (APS)

    Dr Pekka Koskinen

  23. Simple metal under tensile stress: layer-dependent herringbone reconstruction of thin potassium films on graphite

    Article • Scientific Reports, May 2015, Springer Science + Business Media

    Dr Pekka Koskinen

  24. Real-space Wigner-Seitz Cells Imaging of Potassium on Graphite via Elastic Atomic Manipulation

    Article • Scientific Reports, February 2015, Springer Science + Business Media

    Dr Pekka Koskinen

  25. Curvature in graphene nanoribbons generates temporally and spatially focused electric currents

    Article • Nanoscale, January 2015, Royal Society of Chemistry

    Dr Pekka Koskinen

  26. Plenty of motion at the bottom: atomically thin liquid gold membrane

    Article • Nanoscale, January 2015, Royal Society of Chemistry

    Dr Pekka Koskinen

  27. Electromechanics of graphene spirals

    Article • AIP Advances, December 2014, American Institute of Physics

    Dr Pekka Koskinen

  28. Density-Functional Tight-Binding Simulations of Curvature-Controlled Layer Decoupling and Band-Gap Tuning in Bilayer MoS 2

    Article • Physical Review Letters, May 2014, American Physical Society (APS)

    Dr Pekka Koskinen

  29. Nanomechanical cleavage of molybdenum disulphide atomic layers

    Article • Nature Communications, April 2014, Springer Science + Business Media

    Dr. habil Pavel B Sorokin, Dr Pekka Koskinen

  30. Graphene cardboard: From ripples to tunable metamaterial

    Article • Applied Physics Letters, March 2014, American Institute of Physics

    Dr Pekka Koskinen

  31. Optical and electronic properties of graphene nanoribbons upon adsorption of ligand-protected aluminum clusters

    Article • Physical Chemistry Chemical Physics, January 2014, Royal Society of Chemistry

    Dr Pekka Koskinen

  32. Electronic structure trends of Möbius graphene nanoribbons from minimal-cell simulations

    Article • Computational Materials Science, January 2014, Elsevier

    Dr Pekka Koskinen

  33. Li+ adsorption at prismatic graphite surfaces enhances interlayer cohesion

    Article • Journal of Power Sources, October 2013, Elsevier

    Dr Pekka Koskinen

  34. Electron quantization in arbitrarily shaped gold islands on MgO thin films

    Article • Physical Review B, September 2013, American Physical Society (APS)

    Dr Pekka Koskinen

  35. Bending-induced delamination of van der Waals solids

    Article • Journal of Physics Condensed Matter, September 2013, Institute of Physics Publishing

    Dr Pekka Koskinen

  36. Topological Signatures in the Electronic Structure of Graphene Spirals

    Article • Scientific Reports, April 2013, Springer Science + Business Media

    Dr Alexey A Popov, Dr Pekka Koskinen

  37. Modeling thiolate-protected gold clusters with density-functional tight-binding

    Article • The European Physical Journal D, February 2013, Springer Science + Business Media

    Dr Pekka Koskinen

  38. Graphene nanoribbons subject to gentle bends

    Article • Physical Review B, May 2012, American Physical Society (APS)

    Dr Pekka Koskinen

  39. Edge-stress-induced spontaneous twisting of graphene nanoribbons

    Article • Journal of Applied Physics, March 2012, American Institute of Physics

    Dr Pekka Koskinen

  40. Twisting graphene nanoribbons into carbon nanotubes

    Article • Physical Review B, February 2012, American Physical Society (APS)

    Dr Pekka Koskinen

  41. Revised periodic boundary conditions: Fundamentals, electrostatics, and the tight-binding approximation

    Article • Physical Review B, October 2011, American Physical Society (APS)

    Dr Pekka Koskinen

  42. Electromechanics of twisted graphene nanoribbons

    Article • Applied Physics Letters, July 2011, American Institute of Physics

    Dr Pekka Koskinen

  43. Approximate modeling of spherical membranes

    Article • Physical Review B, December 2010, American Physical Society (APS)

    Dr Pekka Koskinen

  44. Electronic and optical properties of carbon nanotubes under pure bending

    Article • Physical Review B, November 2010, American Physical Society (APS)

    Dr Pekka Koskinen

  45. Efficient Approach for Simulating Distorted Materials

    Article • Physical Review Letters, August 2010, American Physical Society (APS)

    Dr Pekka Koskinen

  46. Structural, chemical, and dynamical trends in graphene grain boundaries

    Article • Physical Review B, April 2010, American Physical Society (APS)

    Dr Pekka Koskinen

  47. Characterizing low-coordinated atoms at the periphery of MgO-supported Au islands using scanning tunneling microscopy and electronic structure calculations

    Article • Physical Review B, April 2010, American Physical Society (APS)

    Dr Pekka Koskinen

  48. Exploring the graphene edges with coherent electron focusing

    Article • Physical Review B, March 2010, American Physical Society (APS)

    Dr Pekka Koskinen

  49. Density-functional tight-binding for beginners

    Article • Computational Materials Science, November 2009, Elsevier

    Dr Pekka Koskinen

  50. Understanding the microscopic processes that govern the charge-induced deformation of carbon nanotubes

    Article • Physical Review B, October 2009, American Physical Society (APS)

    Dr Pekka Koskinen

  51. Evidence for graphene edges beyond zigzag and armchair

    Article • Physical Review B, August 2009, American Physical Society (APS)

    Dr Pekka Koskinen

  52. Density functional theory based screening of ternary alkali-transition metal borohydrides: A computational material design project

    Article • The Journal of Chemical Physics, July 2009, American Institute of Physics

    Dr Pekka Koskinen, Adem Tekin

  53. Bright Beaches of Nanoscale Potassium Islands on Graphite in STM Imaging

    Article • Physical Review Letters, March 2009, American Physical Society (APS)

    Dr Pekka Koskinen

  54. Gold in graphene: In-plane adsorption and diffusion

    Article • Applied Physics Letters, January 2009, American Institute of Physics

    Dr Pekka Koskinen

  55. Comparison of Raman spectra and vibrational density of states between graphene nanoribbons with different edges

    Article • The European Physical Journal D, January 2009, Springer Science + Business Media

    Dr Pekka Koskinen

  56. Effect of bending on Raman-active vibration modes of carbon nanotubes

    Article • Physical Review B, October 2008, American Physical Society (APS)

    Dr Pekka Koskinen

  57. Self-Passivating Edge Reconstructions of Graphene

    Article • Physical Review Letters, September 2008, American Physical Society (APS)

    Dr Pekka Koskinen

  58. Raman spectra of single-walled carbon nanotubes with vacancies

    Article • Physical Review B, April 2008, American Physical Society (APS)

    Dr Pekka Koskinen

  59. Size-Dependent Structural Evolution and Chemical Reactivity of Gold Clusters

    Article • ChemPhysChem, January 2007, Wiley

    Dr Pekka Koskinen

  60. Liquid-Liquid Phase Coexistence in Gold Clusters: 2D or Not 2D?

    Article • Physical Review Letters, January 2007, American Physical Society (APS)

    Dr Pekka Koskinen

  61. Structural Relaxation Made Simple

    Article • Physical Review Letters, October 2006, American Physical Society (APS)

    Dr Pekka Koskinen

  62. Density-functional based tight-binding study of small gold clusters

    Article • New Journal of Physics, January 2006, Institute of Physics Publishing

    Dr Pekka Koskinen

  63. Oxidation of magnesia-supported Pd-clusters leads to the ultimate limit of epitaxy with a catalytic function

    Article • Nature Materials, December 2005, Springer Science + Business Media

    Dr Pekka Koskinen

  64. Charge fluctuations in coupled systems: Ring coupled to a wire or ring

    Article • Physical Review B, October 2005, American Physical Society (APS)

    Dr Pekka Koskinen

  65. Quantum rings for beginners: energy spectra and persistent currents

    Article • Physica E Low-dimensional Systems and Nanostructures, February 2004, Elsevier

    Dr Pekka Koskinen

  66. Single scatterings in single artificial atoms: Quantum coherence and entanglement

    Article • December 2003, American Physical Society (APS)

    Dr Pekka Koskinen

  67. Persistent currents in small, imperfect Hubbard rings

    Article • November 2003, American Physical Society (APS)

    Dr Pekka Koskinen

  68. Fractional periodicity of persistent currents: A signature of broken internal symmetry

    Article • EPL (Europhysics Letters), September 2003, Institute of Physics Publishing

    Dr Pekka Koskinen

  69. Four-wave mixing in coupled semiconductor quantum dots

    Article • Solid State Communications, March 2003, Elsevier

    Dr Pekka Koskinen

  70. Tight-Binding Model for Spontaneous Magnetism of Quantum Dot Lattices

    Article • Physica Scripta, January 2003, Institute of Physics Publishing

    Dr Pekka Koskinen

  71. Low-energy spectrum and finite temperature properties of quantum rings

    Article • The European Physical Journal B, August 2002, Springer Science + Business Media

    Dr Pekka Koskinen