Domenica Convertino

Ultrafast signatures of Dirac / flat-band hybrid states from time-resolved ARPES

Maria-Elisabeth Federl, Johannes Gradl, Franziska Bergmeier, Leonard Weigl et autres

Hybridization of highly itinerant Dirac electrons with localized flat-band states is predicted to yield emergent phenomena such as exotic heavy-fermion behaviour. Epitaxial graphene on two-dimensional adsorbate structures on SiC(0001), which host flat bands, offers a promising platform to explore these effects. However, …

Ultrafast signatures of Dirac / flat-band hybrid states from time-resolved ARPES

Maria-Elisabeth Federl, Johannes Gradl, Franziska Bergmeier, Leonard Weigl et autres

Hybridization of highly itinerant Dirac electrons with localized flat-band states is predicted to yield emergent phenomena such as exotic heavy-fermion behaviour. Epitaxial graphene on two-dimensional adsorbate structures on SiC(0001), which host flat bands, offers a promising platform to explore these effects. However, …

Graphene lattice recoil in hard X-ray photoemission: Experiment and Theory

Simone Ritarossi, Alice Apponi, Orlando Castellano, J. Lorenzana et autres

Hard-x-ray C 1s photoemission from monolayer graphene probes a regime in which nuclear recoil and intrinsic electronic asymmetry contribute on comparable energy scales to the observed spectral line shape. Here we combine experiment and modeling over the photon-energy range 0.8 keV--8 keV …

Graphene lattice recoil in hard X-ray photoemission: Experiment and Theory

Simone Ritarossi, Alice Apponi, Orlando Castellano, J. Lorenzana et autres

Hard-x-ray C 1s photoemission from monolayer graphene probes a regime in which nuclear recoil and intrinsic electronic asymmetry contribute on comparable energy scales to the observed spectral line shape. Here we combine experiment and modeling over the photon-energy range 0.8 keV--8 keV …

it, gb (code pays fourni par la source)

Influence of twist angle on ultrafast charge separation in WS2-graphene heterostructures

Niklas Hofmann, Leonard Weigl, Johannes Gradl, Stiven Forti et autres

Van der Waals (vdW) heterostructures, formed by stacking two-dimensional materials, offer highly tunable electronic and optical properties, with the twist angle between layers acting as a critical tuning parameter. While its impact on moiré patterns, band structure, and correlated states is well-established, …

Influence of twist angle on ultrafast charge separation in WS2-graphene heterostructures

Niklas Hofmann, Leonard Weigl, Johannes Gradl, Stiven Forti et autres

Van der Waals (vdW) heterostructures, formed by stacking two-dimensional materials, offer highly tunable electronic and optical properties, with the twist angle between layers acting as a critical tuning parameter. While its impact on moiré patterns, band structure, and correlated states is well-established, …

de, it (code pays fourni par la source)

Scalable CVD Graphene Field-Effect Transistor Platform for Viral Detection: Application to COVID-19

Leonardo Martini, Ylea Vlamidis, Ileana Armando, Domenica Convertino et autres

The rapid and global spread of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), underscored the urgent need for fast, reliable, and adaptable diagnostic tools capable of responding to current and future viral threats. Early diagnosis …

it (code pays fourni par la source)

A Wide Optical-Gap in Fully sp3-Like Hydrogenated Monolayer Graphene

Alice Apponi, Orlando Castellano, Daniele Paoloni, Domenica Convertino et autres

Stability of highly hydrogenated monolayer graphene in ultra-high vacuum and in air

Alice Apponi, Orlando Castellano, Daniele Paoloni, Domenica Convertino et autres

Aptamer-based QCM-D platform for monitoring biofertilizers in soil

Francesco Lunardelli, Andrea Manfredini, Loredana Canfora, Mariacristina Gagliardi et autres

The increasing use of bioinoculants to enhance soil quality and crop productivity requires efficient sensor platforms for fast monitoring. EU and national registration demand analytical methods to evaluate environmental fate and long-term effectiveness. Addressing these challenges requires evaluating bioinoculant persistence and impact …

it, pl (code pays fourni par la source)

Influence of doping on non-equilibrium carrier dynamics in graphene

Leonard Weigl, Johannes Gradl, Péter Richter, Domenica Convertino et autres

Abstract Controlling doping is key to optimizing graphene for high-speed electronic and optoelectronic devices. However, its impact on non-equilibrium carrier lifetimes remains debated. Here, we systematically tune the doping level of quasi-freestanding epitaxial graphene on SiC(0001) via potassium deposition and probe its …

de, it (code pays fourni par la source)

Scalable CVD Graphene Field-Effect Transistor Platform for Viral Detection: Application to COVID-19

Leonardo Martini, Ylea Vlamidis, Ileana Armando, Domenica Convertino et autres

The rapid and global spread of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), underscored the urgent need for fast, reliable, and adaptable diagnostic tools capable of responding to current and future viral threats. Early diagnosis …