350 citations · 1.8k across the 47 of their papers we have counts for
49 papers
Direct observation of flat bands in near-magic-angle twisted bilayer CVD graphene
Gianluigi Baiardi, Alex Boschi, Giulia Piccinini +13
Advances in chemical vapor deposition (CVD) growth have driven graphene crystal quality to unprecedented levels, yet it is still unknown whether this route can realize the fragile…
Lifshitz transitions and isospin polarization in twist-decoupled monolayer-bilayer graphene
Alex Boschi, Leonardo Sabattini, Sergey Slizovskiy +10
Bernal-stacked bilayer graphene (BLG) hosts correlated electronic phases tied to low-energy Lifshitz transitions at saddle points in its valence band. To access this regime, ultral…
Ultrafast signatures of Dirac / flat-band hybrid states from time-resolved ARPES
Maria-Elisabeth Federl, Johannes Gradl, Franziska Bergmeier +12
Hybridization of highly itinerant Dirac electrons with localized flat-band states is predicted to yield emergent phenomena such as exotic heavy-fermion behaviour. Epitaxial graphen…
Influence of twist angle on ultrafast charge separation in WS2-graphene heterostructures
Niklas Hofmann, Leonard Weigl, Johannes Gradl +4
Van der Waals (vdW) heterostructures, formed by stacking two-dimensional materials, offer highly tunable electronic and optical properties, with the twist angle between layers acti…
Nickel intercalation in epitaxial graphene on SiC(0001): a novel platform for engineering two-dimensional heterostructures
Ylea Vlamidis, Stiven Forti, Antonio Rossi +5
Two-dimensional (2D) magnetic materials integrated with graphene offer a compelling platform for next-generation spintronic devices, yet nickel in its 2D form remains largely unexp…
Influence of sulphur vacancies on ultrafast charge separation in WS-graphene heterostructures
Johannes Gradl, Niklas Hofmann, Leonard Weigl +6
Understanding how defects influence charge separation in WS-graphene heterostructures is crucial for future applications in light harvesting and detection. Previous studies hav…
Real-Space Plasmon Imaging Reveals Modified Electronic Structure of Gold at the Monolayer Limit
Andrei Bylinkin, Philippe Roelli, Naveen Shetty +8
Atomically thin materials exhibit electronic and optical properties distinct from their three-dimensional counterparts. For metals, particularly gold, monolayer studies remain larg…
SpectraFormer: an Attention-Based Raman Unmixing Tool for Accessing the Graphene Buffer-Layer Signature on SiC
Dmitriy Poteryayev, Pietro Novelli, Annalisa Coriolano +7
Raman spectroscopy is a key tool for graphene characterization, yet its application to graphene grown on silicon carbide (SiC) is strongly limited by the intense and variable secon…
Phason-driven temperature-dependent transport in moiré graphene
Alex Boschi, Alejandro Ramos-Alonso, Vaidotas Mišeikis +9
The electronic and vibrational properties of 2D materials are dramatically altered by the formation of a moiré superlattice. The lowest-energy phonon modes of the superlattice are…
Novel structures of Gallenene intercalated in epitaxial Graphene
Emanuele Pompei, Katarzyna Skibińska, Giulio Senesi +8
The creation of atomically thin layers of non-exfoliable materials remains a crucial challenge, requiring the development of innovative techniques. Here, confinement epitaxy is exp…
Influence of doping on non-equilibrium carrier dynamics in graphene
Leonard Weigl, Johannes Gradl, Peter Richter +5
Controlling doping is key to optimizing graphene for high-speed electronic and optoelectronic devices. However, its impact on non-equilibrium carrier lifetimes remains debated. Her…
Influence of excitation energy on microscopic quantum pathways for ultrafast charge transfer in van der Waals heterostructures
Niklas Hofmann, Johannes Gradl, Leonard Weigl +3
Efficient charge separation in van der Waals (vdW) heterostructures is crucial for optimizing light harvesting and detection applications. However, precise control over the microsc…
Intercalated structures formed by platinum on epitaxial graphene on SiC(0001)
Letizia Ferbel, Stefano Veronesi, Antonio Rossi +3
Graphene on SiC intercalated with two-dimensional metal layers, such as Pt, offers a versatile platform for applications in spintronics, catalysis, and beyond. Recent studies have…
Adaptive AI-Driven Material Synthesis: Towards Autonomous 2D Materials Growth
Leonardo Sabattini, Annalisa Coriolano, Corneel Casert +7
Two-dimensional (2D) materials are poised to revolutionize current solid-state technology with their extraordinary properties. Yet, the primary challenge remains their scalable pro…
Rapid synthesis of uniformly small nickel nanoparticles for the surface functionalization of epitaxial graphene
Ylea Vlamidis, Stiven Forti, Antonio Rossi +4
Nickel nanoparticles (Ni NPs), thanks to their peculiar properties, are interesting materials for many applications including catalysis, hydrogen storage, and sensors. In this work…
Built-in Bernal gap in large-angle-twisted monolayer-bilayer graphene
Alex Boschi, Zewdu M. Gebeyehu, Sergey Slizovskiy +9
Atomically thin materials offer multiple opportunities for layer-by-layer control of their electronic properties. While monolayer graphene (MLG) is a zero-gap system, Bernal-stacke…
k-resolved ultrafast light-induced band renormalization in monolayer WS on graphene
Niklas Hofmann, Alexander Steinhoff, Razvan Krause +6
Understanding and controlling the electronic properties of two-dimensional materials is crucial for their potential applications in nano- and optoelectronics. Monolayer transition…
Growth and applications of two-dimensional single crystals
Zhibin Zhang, Stiven Forti, Wanqing Meng +5
Two-dimensional (2D) materials have received extensive research attentions over the past two decades due to their intriguing physical properties (such as the ultrahigh mobility and…
Link between interlayer hybridization and ultrafast charge transfer in WS-graphene heterostructures
Niklas Hofmann, Leonard Weigl, Johannes Gradl +12
Ultrafast charge separation after photoexcitation is a common phenomenon in various van-der-Waals (vdW) heterostructures with great relevance for future applications in light harve…
Observation of increasing bending rigidity of graphene with temperature
Martin Tømterud, Simen K. Hellner, Sabrina D. Eder +6
The mechanical properties of two-dimensional materials are important for a wide range of applications including composite and van der Waals-materials, flexible electronics and supe…
Industrial graphene coating of low-voltage copper wires for power distribution
Neeraj Mishra, Ylea Vlamidis, Leonardo Martini +9
Copper (Cu) is the electrical conductor of choice in many categories of electrical wiring, with household and building installations being the major market of this metal. This work…
Black Phosphorus n-type doping by Cu: a microscopic surface investigation
Abhishek Kumar, Francesca Telesio, Deborah Prezzi +8
We study surface charge transfer doping of exfoliated black phosphorus (bP) flakes by copper using scanning tunneling microscopy (STM) and spectroscopy (STS) at room temperature. T…
Ultra-clean high-mobility graphene on technologically relevant substrates
Ayush Tyagi, Vaidotas Mišeikis, Leonardo Martini +10
Graphene grown via chemical vapour deposition (CVD) on copper foil has emerged as a high-quality, scalable material, that can be easily integrated on technologically relevant platf…
Hot-Carrier Cooling in High-Quality Graphene is Intrinsically Limited by Optical Phonons
Eva A. A. Pogna, Xiaoyu Jia, Alessandro Principi +20
Many promising optoelectronic devices, such as broadband photodetectors, nonlinear frequency converters, and building blocks for data communication systems, exploit photoexcited ch…