402 citations · 985 across the 19 of their papers we have counts for
20 papers
Decorated electronic kagome lattice in twisted bilayer germanene
Dennis J. Klaassen, Rian A. M. Ligthart, Andrés R. Botello Mendez +10
Artificial kagome lattices provide a route to electronic flat bands, geometric frustration, and correlation driven phases, but their realization in atomically controlled two-dimens…
Topology of honeycomb nanoribbons revisited
Zebedeus F. Osseweijer, Lumen Eek, Harold J. W. Zandvliet +2
We present an in-depth study of end states in honeycomb nanoribbons, focusing on the interplay between nanoribbon termination, chiral symmetry, and complex next-nearest-neighbor ho…
Real-Space Imaging of Moiré-Confined Excitons in Twisted Bilayer MoS
Laurens J. M. Westenberg, Lumen Eek, Jort D. Verbakel +8
Twisted two-dimensional semiconductors generate a moiré landscape that confines excitons (bound electron-hole pairs) into programmable lattices, offering routes to efficient light…
Electric field-induced spin-valley locking in twisted bilayer buckled honeycomb materials
Harold J. W. Zandvliet, Pantelis Bampoulis, Cristiane Morais Smith +1
A twisted honeycomb bilayer exhibits a moiré superstructure that is composed of a hexagonal arrangement of AB and BA stacked domains separated by domain boundaries. In the case of…
Electric-field control of zero-dimensional topological states in ultranarrow germanene nanoribbons
Lumen Eek, Esra D. van 't Westende, Dennis J. Klaassen +3
Reversible, all-electric control of symmetry-protected zero-dimensional modes has been a long-standing goal. In buckled honeycomb lattices, a perpendicular field couples to the sta…
Realization of a one-dimensional topological insulator in ultrathin germanene nanoribbons
Dennis J. Klaassen, Lumen A. G. Eek, Alexander N. Rudenko +9
Realizing a one-dimensional (1D) topological insulator and identifying the lower dimensional limit of two-dimensional (2D) behavior are crucial steps toward developing high-density…
2024 roadmap on 2D topological insulators
Bent Weber, Michael S Fuhrer, Xian-Lei Sheng +22
2D topological insulators promise novel approaches towards electronic, spintronic, and quantum device applications. This is owing to unique features of their electronic band struct…
Moiré-modulated band gap and van Hove singularities in twisted bilayer germanene
Pantelis Bampoulis, Carolien Castenmiller, Dennis J. Klaassen +4
Twisting bilayers of two-dimensional topological insulators has the potential to create unique quantum states of matter. Here, we successfully synthesized a twisted bilayer of germ…
Unidirectional Nano-Modulated Binding and Electron Scattering in Epitaxial Borophene
Sherif Kamal, Insung Seo, Pantelis Bampoulis +12
A complex interplay between the crystal structure and electron behavior within borophene renders this material an intriguing 2D system with many of its electronic properties still…
Impact of TCO Microstructure on the Electronic Properties of Carbazole-based Self-Assembled Monolayers
Suzana Kralj, Pia Dally, Pantelis Bampoulis +3
Carbazole-based self-assembled monolayers (PACz-SAMs), anchored via their phosphonic acid group on a transparent conductive oxide (TCO) have demonstrated excellent performance as h…
Charge transport modulation by a redox supramolecular spin-filtering chiral crystal
Michael Verhage, Pantelis Bampoulis, Marco D. Preuss +5
The chirality induced spin selectivity (CISS) effect is a fascinating phenomena correlating molecular structure with electron spin-polarisation in excited state measurements. Exper…
Topologically protected one-dimensional electronic states in group IV two-dimensional Dirac materials
H. J. W. Zandvliet, J. D. Verbakel, Q. Yao +2
In this report we give a brief introduction on the occurrence of topologically protected one-dimensional electronic states in group IV two-dimensional graphene-like materials. We d…
Chemical vapor deposition growth of bilayer graphene in between molybdenum disulfide sheets
Wojciech Kwiecinski, Kai Sotthewes, Bene Poelsema +2
Direct growth of flat micrometer-sized bilayer graphene islands in between molybdenum disulfide sheets is achieved by chemical vapor deposition of ethylene at about 800 °C. The tem…
Electronic and energetic properties of Ge(110) pentagons
Pantelis Bampoulis, Adil Acun, Lijie Zhang +1
The electronic and energetic properties of the elementary building block, i.e. a five-membered atom ring (pentagon), of the Ge(110) surface was studied by scanning tunneling micros…
Germanene termination of GePt crystals on Ge(110)
P. Bampoulis, L. Zhang, A. Safaei +3
We have investigated the growth of Pt on Ge(110) using scanning tunneling microscopy and spectroscopy. The deposition of several monolayers of Pt on Ge(110) followed by annealing a…
Structural and electronic properties of germanene on MoS
L. Zhang, P. Bampoulis, A. N. Rudenko +5
To date, germanene has only been synthesized on metallic substrates. A metallic substrate is usually detrimental for the two-dimensional Dirac nature of germanene because the impor…
Hydrophobic Ice Confined between Graphene and MoS2
Pantelis Bampoulis, Vincent J. Teernstra, Detlef Lohse +2
The structure and nature of water confined between hydrophobic molybdenum disulfide (MoS2) and graphene (Gr) are investigated at room temperature by means of atomic force microscop…
Two-dimensional Dirac signature of germanene
L. Zhang, P. Bampoulis, A. van Houselt +1
The structural and electronic properties of germanene coated GePt clusters have been determined by scanning tunneling microscopy and spectroscopy at room temperature. The inter…
Spatially resolved electronic structure of twisted graphene
Qirong Yao, Rik van Bremen, Guus J. Slotman +8
We have used scanning tunneling microscopy and spectroscopy to resolve the spatial variation of the density of states of twisted graphene layers on top of a highly oriented pyrolyt…
Latent heat induced rotation limited aggregation in 2D ice nanocrystals
Pantelis Bampoulis, Martin H. Siekman, E. Stefan Kooij +3
The basic science responsible for the fascinating shapes of ice crystals and snowflakes is still not understood. Insufficient knowledge of the interaction potentials and the lack o…