Sergio Pezzini

  • CNR Researcher
  • sergio.pezzini@nano.cnr.it
  • Pisa
  • +39-050-509123
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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

q-LIMA (PRIN 2020)

Selected Publications

"Parallel transport and layer-resolved thermodynamic measurements in twisted bilayer graphene", Piccinini, V. Mišeikis, K. Watanabe, T. Taniguchi, C. Coletti, S. Pezzini, arXiv:2109.06812.

 

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

 

"30°-twisted bilayer graphene quasicrystals from chemical vapor deposition", Pezzini, V. Miseikis, G. Piccinini, S. Forti, S. Pace, R. Engelke, F. Rossella, K. Watanabe, T. Taniguchi, P. Kim, and C.Coletti, Nano Lett. 20, 3313-3319 (2020).

 

"Field-induced insulating states in a graphene superlattice", Pezzini, S. Wiedmann, A. Mishchenko, M. Holwill, R.Gorbachev, D. Ghazaryan, K. S. Novoselov, and U. Zeitler, PRB 99, 045440 (2019).

 

"High-order fractal states in graphene superlattices", K. Kumar, A. Mischenko, X. Chen, S. Pezzini, G. Auton, L. Ponomarenko, U. Zeitler, L. Eaves, V. Fal'ko, and A. K. Geim, , PNAS 115, 5135-5139 (2018).

 

"Unconventional mass enhancement around the Dirac nodal loop in ZrSiS", Pezzini, M. van Delft, L. Schoop, B. Lotsch, A. Carrington, M. I. Katsnelson, N. E. Hussey, and S. Wiedmann, Nat. Phys. 14, 178-183 (2018).

 

"Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures", 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, Science 353, 575-579 (2016).

 

"Local spectroscopy of moiré-induced electronic structure in gate-tunable twisted bilayer graphene", 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, PRB 92, 155409 (2015).

Istituto Nanoscienze 

Consiglio Nazionale delle Ricerche

 

PEC: protocollo.nano@pec.cnr.it

Partita IVA 02118311006

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Pisa NEST

Piazza San Silvestro 12

56127 Pisa, Italy

phone +39 050 509418

fax +39 050 509550

segreteria.nest@nano.cnr.it

Modena S3
via Campi 213/A
41125 Modena, Italy
phone +39 059 2055629
fax +39 059 2055651
segreteria.s3@nano.cnr.it

Istituto Nanoscienze Consiglio Nazionale delle Ricerche

Facebook-f Instagram Twitter Linkedin
Pisa NEST

Piazza San Silvestro 12, I
56127 Pisa

phone +39 050 509525/418

fax +39 050 509550

Modena S3

via Campi 213/A, I 

41125 Modena 7

phone +39 059 2055629

fax +39 059 2055651″