3 papers
cond-mat.mes-hall2025
Localized surface plasmons in a Weyl semimetal nanosphere
Francesco M. D. Pellegrino, Francesco Buccheri, G. G. N. Angilella
In this study, we investigate the localized surface plasmon modes of a sub-wavelength spherical nanoparticle composed of a Weyl semimetal, taking into account the axion modificatio…
cond-mat.mes-hall2025
Local analysis of a single impurity on a graphene Josephson Junction
Ignazio Vacante, Francesco M. D. Pellegrino, G. G. N. Angilella +2
In this work, we investigate the local effects of a single short-range impurity on the electron system of a short ballistic graphene Josephson Junction. Within the Dirac-Bogoliubov…
hep-th2024
Higher-derivative four-dimensional sine-Gordon model
Matteo F. Bontorno, G. G. N. Angilella, Dario Zappala
The phase structure of a higher derivative sine-Gordon model in four dimensions is analysed. It is shown that the inclusion of a relevant two-derivative term in the action signific…