Sergio Pezzini

Short Bio

Research Interests

- Twistronics:

Two-dimensional materials (2DMs) can be assembled in artificial stacks held together by van der Waals forces. Controlling the relative crystallographic orientation of individual atomic layers in the stack (so-called twist angle) adds a powerful tuning knob for the electronic properties. I’m interested in engineering twisted 2DMs heterostructures and study their properties via low temperature electrical (magneto)transport experiments on high-mobility field-effect devices.

 

- 2DMs-superconductor hybrids:

Superconductivity can be induced in normal (i.e. non-superconducting) materials via the proximity effect. Under appropriate choice of the normal material, exotic superconducting phases might emerge. I’m interested in coupling 2DMs-stacks with superconducting electrodes to realize hybrid field-effect devices working in high magnetic fields.

Selected Recent Projects

National Quantum Science and Technology Institute (PNRR MUR project PE0000023-NQSTI, Spoke 5) https://nqsti.it/

Selected Publications

A. Boschi, Z. M. Gebeyehu, S. Slizovskiy, V. Mišeikis, S. Forti, A. Rossi, K. Watanabe, T. Taniguchi, F. Beltram, V. I. Fal'ko, C. Coletti, and S. Pezzini. Built-in Bernal gap in large-angle-twisted monolayer-bilayer graphene. Commun Phys 7, 391 (2024)

 

D. Vaquero, V. Clericò, M. Schmitz, J. A. Delgado-Notario, A. Martín-Ramos, J. Salvador-Sánchez, C. S. A. Müller, K. Rubi, K. Watanabe, T. Taniguchi, B. Beschoten, C. Stampfer, E. Diez, M. I. Katsnelson, U. Zeitler, S. Wiedmann, and S. Pezzini. Phonon-mediated room-temperature quantum Hall transport in graphene, Nat Commun 14, 318 (2023)

 

G. Piccinini, V. Mišeikis, P. Novelli, K. Watanabe, T. Taniguchi, M. Polini, C. Coletti, and S. Pezzini. Moiré-Induced transport in CVD-based small-angle twisted bilayer graphene, Nano Lett 22, 5252 (2022)

 

G. Piccinini, V. Mišeikis, K. Watanabe, T. Taniguchi, C. Coletti, and S. Pezzini. Parallel transport and layer-resolved thermodynamic measurements in twisted bilayer graphene, PRB 104, L241410 (2021)

 

S. Pezzini, V. Mišeikis, S. Pace, F. Rossella, K. Watanabe, T. Taniguchi, and C. Coletti. High-quality electrical transport using scalable CVD graphene, 2D Mater 7, 041003 (2020)

 

S. Pezzini, V. Miseikis, G. Piccinini, S. Forti, S. Pace, R. Engelke, F. Rossella, K. Watanabe, T. Taniguchi, P. Kim, and C. Coletti. 30°-twisted bilayer graphene quasicrystals from chemical vapor deposition, Nano Lett 20, 3313 (2020)

 

S. Pezzini, M. van Delft, L. Schoop, B. Lotsch, A. Carrington, M. I. Katsnelson, N. E. Hussey, and S. Wiedmann. Unconventional mass enhancement around the Dirac nodal loop in ZrSiS, Nat Phys 14, 178 (2018)

 

J. R. Wallbank, D. Ghazaryan, A. Misra, Y. Cao, J. S. Tu, B. A. Piot, M. Potemski, S. Pezzini, S. Wiedmann, U. Zeitler, T. L. M. Lane, S. V. Morozov, M. T. Greenaway, L. Eaves, A. K. Geim, V. I. Fal'ko, K. S. Novoselov, and A. Mishchenko. Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures, Science 353, 575 (2016)

 

D. Wong, Y. Wang, J. Jung, S. Pezzini, A. DaSilva, H-Z Tsai, H. S. Jung, R. Khajeh, Y. Kim, J. Lee, S. Kahn, S. Tollabimazraehno, H. Rasool, K. Watanabe, T. Taniguchi, A. Zettl, S. Adam, A. H. MacDonald, and M. F. Crommie. Local spectroscopy of moiré-induced electronic structure in gate-tunable twisted bilayer graphene, PRB 92, 155409 (2015)