Opto-thermal dynamics of thin-film optical limiters based on the VO2 phase transition

A Tognazzi, M Gandolfi, B Li, G Ambrosio… - Optical Materials …, 2023 - opg.optica.org
Protection of human eyes or sensitive detectors from high-intensity laser radiation is an
important challenge in modern light technologies. Metasurfaces have proved to be valuable …

Imaging of electrothermal filament formation in a Mott insulator

M Lange, S Guénon, Y Kalcheim, T Luibrand… - Physical Review …, 2021 - APS
Resistive switching—the current-and voltage-induced change of electrical resistance—is at
the core of memristive devices, which play an essential role in the emerging field of …

Dynamics of the electrically induced insulator-to-metal transition in rare-earth nickelates

J del Valle, R Rocco, C Domínguez, J Fowlie… - Physical Review B, 2021 - APS
Rare-earth nickelates feature an insulator-to-metal transition (IMT) that can be electrically
triggered. We study the dynamics of this electrically induced transition by comparing the time …

Ultrafast photoacoustic nanometrology of InAs nanowires mechanical properties

M Gandolfi, S Peli, M Diego, S Danesi… - The Journal of …, 2022 - ACS Publications
InAs nanowires are emerging as go-to materials in a variety of applications ranging from
optoelectronics to nanoelectronics, yet a consensus on their mechanical properties is still …

Domain nucleation across the metal-insulator transition of self-strained films

A Pofelski, S Valencia, Y Kalcheim, P Salev… - Physical Review …, 2024 - APS
Bulk V 2 O 3 features concomitant metal-insulator (MIT) and structural (SPT) phase
transitions at TC∼ 160 K. In thin films, where the substrate clamping can impose …

Chemical, structural and electronic properties of ultrathin V2O3 films on Al2O3 substrate: Implications in Mott-like transitions

V Polewczyk, SK Chaluvadi, D Dagur, F Mazzola… - Applied Surface …, 2023 - Elsevier
V 2 O 3 presents a complex interrelationship between the metal–insulator transition and the
structural rhombohedral-monoclinic one in temperature, as a function of sample thickness …

Electrically Induced Nonthermal Memristive Switching in Thin Film

S Sahoo, A Jana, S Yadav, R Rawat, DM Phase… - Physical Review …, 2023 - APS
Mott-insulator-to-metal transitions under an applied electric field are currently the subject of
numerous fundamental and applied studies. Exploring the electronic parameters …

Nanoscale self-organization and metastable non-thermal metallicity in Mott insulators

A Ronchi, P Franceschini, A De Poli, P Homm… - Nature …, 2022 - nature.com
Mott transitions in real materials are first order and almost always associated with lattice
distortions, both features promoting the emergence of nanotextured phases. This nanoscale …

Realizing Low-Temperature Charge-Transfer-Type Insulating Ground State in Strained V2O3 Thin Film

S Sahoo, A Jana, A Bagri, S Majumder… - ACS Applied …, 2022 - ACS Publications
Controlling the electronic properties of strongly correlated systems, observing electron–
electron correlation-driven metal to insulator transition (MIT) is a key point for the next …

Near to short wave infrared light generation through AlGaAs-on-insulator nanoantennas

M Gandolfi, L Carletti, A Tognazzi, AC Cino… - Optics …, 2023 - opg.optica.org
AlGaAs-on-insulator (AlGaAs-OI) has recently emerged as a promising platform for
nonlinear optics at the nanoscale. Among the most remarkable outcomes, second-harmonic …