We have performed magneto-transport experiments in monolayer, bilayer, trilayer and four layered graphene, at temperatures between 2 and 190 K and magnetic fields up to 28 T. In particular, in monolayer graphene we studied the quantum Hall effect and the metal-insulator transition. On the other hand, in bilayer graphene we observed quantum Hall plateaus at filling factor v = 4, 8, 12, 16, 20, ... and the v = 6 plateau in trilayer graphene, studying their temperature dependence. We have also studied the symmetry properties which are related with different contact configurations describing the method used to study inhomogeneus samples. Finally, four layered graphene we did not found quantum Hall plateaus, but we observed and investigated an ambipolar conduction effect.

Quantum Hall effect in monolayer, bilayer and trilayer graphene / Cobaleda, C.; Diez, E; Amado, M.; Pezzini, S.; Rossella, F.; Bellani, V.; Maude, D. López-RomeroD. K.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 456:1(2013), pp. 012006-1-012006-5. (Intervento presentato al convegno 20th International Conference on the Application of High Magnetic Fields in Semiconductor Physics, HMF 2012 tenutosi a Chamonix Mont Blanc, fra nel 2012) [10.1088/1742-6596/456/1/012006].

Quantum Hall effect in monolayer, bilayer and trilayer graphene

F. Rossella;
2013

Abstract

We have performed magneto-transport experiments in monolayer, bilayer, trilayer and four layered graphene, at temperatures between 2 and 190 K and magnetic fields up to 28 T. In particular, in monolayer graphene we studied the quantum Hall effect and the metal-insulator transition. On the other hand, in bilayer graphene we observed quantum Hall plateaus at filling factor v = 4, 8, 12, 16, 20, ... and the v = 6 plateau in trilayer graphene, studying their temperature dependence. We have also studied the symmetry properties which are related with different contact configurations describing the method used to study inhomogeneus samples. Finally, four layered graphene we did not found quantum Hall plateaus, but we observed and investigated an ambipolar conduction effect.
2013
456
1
012006-1
012006-5
Quantum Hall effect in monolayer, bilayer and trilayer graphene / Cobaleda, C.; Diez, E; Amado, M.; Pezzini, S.; Rossella, F.; Bellani, V.; Maude, D. López-RomeroD. K.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 456:1(2013), pp. 012006-1-012006-5. (Intervento presentato al convegno 20th International Conference on the Application of High Magnetic Fields in Semiconductor Physics, HMF 2012 tenutosi a Chamonix Mont Blanc, fra nel 2012) [10.1088/1742-6596/456/1/012006].
Cobaleda, C.; Diez, E; Amado, M.; Pezzini, S.; Rossella, F.; Bellani, V.; Maude, D. López-RomeroD. K.
File in questo prodotto:
File Dimensione Formato  
Cobaleda_2013_J._Phys. _Conf._Ser._456_012006.pdf

Open access

Tipologia: VOR - Versione pubblicata dall'editore
Dimensione 12.05 MB
Formato Adobe PDF
12.05 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1247616
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
social impact