126 citations · 280 across the 11 of their papers we have counts for
11 papers
Origin of circular and triangular pores in electron-irradiated hexagonal boron nitride
Umair Javed, Manuel Langle, Vladimir Zobac +9
For nearly two decades, it has been known that electron irradiation of hexagonal boron nitride (hBN) in a transmission electron microscope leads to the formation of triangular pore…
Hexatic Phase in Covalent Two-Dimensional Silver Iodide
Thuy An Bui, David Lamprecht, Jacob Madsen +10
According to the Kosterlitz-Thouless-Halperin-Nelson-Young (KTHNY) theory, the transition from a solid to liquid in two dimensions proceeds through an orientationally ordered liqui…
Atomic-scale Oxygen-mediated Etching of 2D MoS and MoTe
E. Harriet Åhlgren, Alexander Markevich, Sophie Scharinger +6
Some of the materials are more affected by oxidation than others. To elucidate the oxidation-induced degradation mechanisms in transition metal chalcogenides, the chemical effects…
Indirect measurement of the carbon adatom migration barrier on graphene
Andreas Postl, Pit Pascal Patrick Hilgert, Alexander Markevich +4
Although surface diffusion is critical for many physical and chemical processes, including the epitaxial growth of crystals and heterogeneous catalysis, it is particularly challeng…
Graphene Lattices with Embedded Transition-Metal Atoms and Tunable Magnetic Anisotropy Energy: Implications for Spintronic Devices
Rostislav Langer, Kimmo Mustonen, Alexander Markevich +3
Doping of the graphene lattice with transition metal atoms resulting in high magnetic anisotropy energy (MAE) is an important goal of materials research owing to its potential appl…
Three-dimensional description of vibration-assisted electron knock-on damage
Alexandru Chirita, Alexander Markevich, Mukesh Tripathi +4
Elastic knock-on is the main electron irradiation damage mechanism in metals including graphene. Atomic vibrations influence its cross-section, but only the out-of-plane direction…
Towards Exotic Layered Materials: 2D Cuprous Iodide
Kimmo Mustonen, Christoph Hofer, Peter Kotrusz +10
Heterostructures composed of two-dimensional (2D) materials are already opening many new possibilities in such fields of technology as electronics and magnonics, but far more could…
Mechanism of electron-beam manipulation of single dopant atoms in silicon
Alexander Markevich, Bethany M Hudak, Jacob Madsen +4
The precise positioning of dopant atoms within bulk crystal lattices could enable novel applications in areas including solid-state sensing and quantum computation. Established sca…
Electron-Beam Manipulation of Silicon Impurities in Single-Walled Carbon Nanotubes
Kimmo Mustonen, Alexander Markevich, Mukesh Tripathi +7
The recent discovery that impurity atoms in crystals can be manipulated with focused electron irradiation has opened novel perspectives for top-down atomic engineering. These achie…
Si Substitution in Nanotubes and Graphene via Intermittent Vacancies
Heena Inani, Kimmo Mustonen, Alexander Markevich +7
The properties of single-walled carbon nanotubes (SWCNTs) and graphene can be modified by the presence of covalently bound impurities. Although this can be achieved by introducing…
Implanting germanium into graphene
Mukesh Tripathi, Alexander Markevich, Roman Böttger +4
Incorporating heteroatoms into the graphene lattice may be used to tailor its electronic, mechanical and chemical properties. Direct substitutions have thus far been limited to inc…