A5072632611- Semiconductor Quantum Structures and Devices
- Quantum and electron transport phenomena
- Advancements in Semiconductor Devices and Circuit Design
- Experimental Learning in Engineering
- Science Education and Pedagogy
- stochastic dynamics and bifurcation
- Advanced Thermodynamics and Statistical Mechanics
- Silicon Nanostructures and Photoluminescence
- Physics of Superconductivity and Magnetism
- Semiconductor materials and interfaces
- Retinal Development and Disorders
- Innovative Teaching Methods
- Chronic Myeloid Leukemia Treatments
- Terahertz technology and applications
- Nanopore and Nanochannel Transport Studies
- GaN-based semiconductor devices and materials
- Photoreceptor and optogenetics research
- Semiconductor materials and devices
- Cancer Immunotherapy and Biomarkers
- Chronic Lymphocytic Leukemia Research
- Educational Strategies and Epistemologies
- Surface and Thin Film Phenomena
- Transplantation: Methods and Outcomes
- Innovative Teaching and Learning Methods
- Electromagnetic Compatibility and Noise Suppression
University of Palermo
2016-2025
Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani
2018
National Interuniversity Consortium for the Physical Sciences of Matter
2007-2016
Institute of Physics
2009
Istituto Nazionale per la Fisica della Materia
1997-2005
Nonlinear relaxation phenomena in three different systems of condensed matter are investigated. (i) First, the phase dynamics Josephson junctions is analyzed. Specifically, a superconductor-graphene-superconductor (SGS) system exhibits quantum metastable states, and average escape time from these states presence Gaussian correlated fluctuations calculated, accounting for variations noise source intensity bias frequency. Moreover, transient long-overlap junction (JJ) subject to thermal...
The translocation of molecules across cellular membranes or through synthetic nanopores is strongly affected by thermal fluctuations.In this work we study how the dynamics a polymer in noisy environment changes when process driven an oscillating electric field.An improved version Rouse model for flexible has been adopted to mimic molecular dynamics, taking into account harmonic interactions between adjacent monomers and excluded-volume effect introducing Lennard-Jones potential all beads.A...
In the context of higher education, call for interdisciplinary learning is becoming increasingly imperative. This holds especially true fields like Mechanical Engineering, where complex challenges often transcend boundaries traditional disciplines. On other hand, active activities promote curiosity, enjoyment, and interest. An final project with an 'active' approach creates opportunity students to integrate apply knowledge across multiple subject areas. this contribution, we discuss results...
Abstract Sustainability is getting mandatory for the continuing human development, where living conditions and resources are used to meet needs without undermining integrity stability of natural system. Sustainable Development an interdisciplinary concept, including Environmental, Health, Energy, Economic, Socio-Cultural areas. Empowering young learners create a sustainable future critical in educating responsible citizens. Education at can also act as vehicle inspire next generation...
Active student involvement and instruction through experience in everyday contexts are pedagogical approaches suitable to promote inquiry-based learning improve learners’ cognitive skills. Nevertheless, many university postgraduate courses offer lecture-based instructions of theoretical concepts the students; little attention is still devoted design hands-on activities, practical/technical competencies enhance students’ effective understanding concepts. The development a personalized,...
Abstract We investigate the mid-infrared thermo-optical properties of polycrystalline alpha-phase molybdenum trioxide (α-MoO3) thin films grown on fused silica substrates via pulsed laser deposition at 500 °C. By analyzing temperature-dependent reflection spectra, we determine stable and uniquely defined MoO3 constants, dn/dT dk/dT, over a 20-250 °C temperature range. Unlike using other techniques room subsequently annealed, our results demonstrate that enables fabrication reliable thermally...
This paper addresses the efficacy of an open-inquiry approach that allows students to build on traditionally received knowledge. A sample thirty engineering undergraduates, having already attended traditional university physics instruction, was selected for this study. The were involved in a six-week long learning experience research activities within highly motivating context developing thermodynamically efficient space base Mars. They designed and carried out their own scientific...
The temperature tunability of complex dielectric constants vanadium dioxide (VO2) makes it a promising phase-change material for use in active, dynamic, tunable photonics applications. Specifically, the semiconductor-to-metal phase transition VO2 enables reversible, broadband, and large refractive index variation paves way plethora Although critical phase-transition is 68 °C films, its can be reduced to room by tungsten-doping dioxide. Such degree freedom controlling through tungsten doping...
The development of mid-infrared nanophotonics relies on the availability new materials combining metal- and insulator-like optical features. We systematically studied phase transition thermochromic vanadium dioxide (VO2) using substitutional tungsten doping at room temperature. Our results reveal that thin films, doped with grown via pulsed laser deposition techniques sapphire substrates, can be precisely engineered to exhibit tailored infrared phonon plasmon polaritonic responses. By...
Within the context of higher education for science or engineering undergraduates, we present an inquiry-driven learning path aimed at developing a more meaningful conceptual understanding electron dynamics in semiconductors presence applied electric fields. The transport nondegenerate n-type indium phosphide bulk semiconductor is modelled using multivalley Monte Carlo approach. main characteristics are explored under different values driving field, lattice temperature and impurity density....
We study the translocation dynamics of a short polymer moving in noisy environment and driven by an oscillating force. The is numerically investigated solving Langevin equation two-dimensional domain. consider phenomenological cubic potential with metastable state to model polymer-pore interaction entropic free energy barrier characterizing process. mean first time center inertia polymers shows nonmonotonic behavior, minimum, as function number monomers. dependence on chain length...
This paper investigates the efficacy of an open-inquiry approach to achieve a long term stability physics instruction. study represents natural continuation research project started four years ago when sample thirty engineering undergraduates, having already attended traditional university instruction, were involved in six-week learning experience activities within highly motivating context developing thermodynamically efficient space base on Mars. Four later, we explore effectiveness that...
Front line therapy for the treatment of patients affected by chronic myeloid leukemia (CML) is based on administration tyrosine kinase inhibitors, namely imatinib or, more recently, axitinib. Although highly effective and represents an example a successful molecular targeted therapy, appearance resistance observed in proportion patients, especially those advanced stages. In this work, we investigate CML, modeling evolutionary dynamics cancerous cell populations simulated patient treated...
We investigate the modification of intrinsic carrier noise spectral density induced in low-doped semiconductor materials by an external correlated source added to driving high-frequency periodic electric field.A Monte Carlo approach is adopted numerically solve transport equation considering all possible scattering phenomena hot electrons medium.We show that spectra are strongly affected intensity and correlation time random field.Moreover, this field can cause a suppression total power.
A semiclassical Monte Carlo approach is adopted to study the multivalley spin depolarization of drifting electrons in a doped n-type GaAs bulk semiconductor, wide range lattice temperature (40 K < TL 300 K) and doping density (1013 cm − 3 n 1016 3). The decay initial non-equilibrium polarization conduction investigated as function amplitude driving static electric field, ranging between 0.1 6 kV 1, by considering dynamics both Γ-valley upper valleys semiconductor. Doping considerably affects...
Abstract Active learning is a format alternative to the conventional lecture/recitation/laboratory; research results have reported that it suitable encourage student inquiry and foster peer mentoring. Although availability of computer‐based materials in biomedical sciences increasing, there are relatively few studies aimed integrate traditional methods teaching with inquiry‐based approaches utilizing these Information Communication Technologies (ICT) tools. This paper describes pilot‐study...