350 citations · 1.8k across the 47 of their papers we have counts for
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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…
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…
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…
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…
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…
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…
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…
On the survival of Floquet-Bloch states in the presence of scattering
S. Aeschlimann, S. A. Sato, R. Krause +9
Floquet theory has spawned many exciting possibilities for electronic structure control with light with enormous potential for future applications. The experimental realization in…
Synthesis of large-area rhombohedral few-layer graphene by chemical vapor deposition on copper
Chamseddine Bouhafs, Sergio Pezzini, Neeraj Mishra +6
Rhombohedral-stacked few-layer graphene (FLG) has been receiving an ever-increasing attention owing to its peculiar electronic properties that could lead to enticing phenomena such…
Semiconductor to metal transition in two-dimensional gold and its van der Waals heterostack with graphene
Stiven Forti, Stefan Link, Alexander Stöhr +4
The synthesis of transition metals in a two-dimensional (2D) fashion has attracted growing attention for both fundamental and application-oriented investigations, such as 2D magnet…
Deterministic direct growth of WS2 on CVD graphene arrays
Giulia Piccinini, Stiven Forti, Leonardo Martini +5
The combination of the exciting properties of graphene with those of monolayer tungsten disulfide (WS2) makes this heterostack of great interest for electronic, optoelectronic and…
Direct evidence for efficient ultrafast charge separation in epitaxial WS/graphene heterostructure
S. Aeschlimann, A. Rossi, M. Chávez-Cervantes +8
We use time- and angle-resolved photoemission spectroscopy (tr-ARPES) to investigate ultrafast charge transfer in an epitaxial heterostructure made of monolayer WS and graphene…
Superlubricity of epitaxial monolayer WS2 on graphene
Holger Buech, Antonio Rossi, Stiven Forti +3
We report on the superlubric sliding of monolayer tungsten disulfide (WS2) on epitaxial graphene (EG) on silicon carbide (SiC). WS2 single-crystalline flakes with lateral size of h…
Revealing the electronic band structure of trilayer graphene on SiC: An angle-resolved photoemission study
Camilla Coletti, Stiven Forti, Alessandro Principi +10
In recent times, trilayer graphene has attracted wide attention owing to its stacking and electric field dependent electronic properties. However, a direct and well-resolved experi…