Role of graphene/substrate interface on the local transport properties of the two-dimensional electron gas (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Role of graphene/substrate interface on the local transport properties of the two-dimensional electron gas (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1063/1.3489942 (literal)

Alternative label

• Sonde S; Giannazzo F; Vecchio C; Yakimova R; Rimini E; Raineri V (2010)
  Role of graphene/substrate interface on the local transport properties of the two-dimensional electron gas
  in Applied physics letters
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Sonde S; Giannazzo F; Vecchio C; Yakimova R; Rimini E; Raineri V (literal)

Pagina inizio

• 132101 (literal)

Pagina fine

• 132101 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 97 (literal)

Rivista

• Applied physics letters (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1. CNR IMM, I-95121 Catania, Italy 2. Scuola Super Catania, I-95123 Catania, Italy 3. Linkoping Univ, IFM, Linkoping, Sweden 4. Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy (literal)

Titolo

• Role of graphene/substrate interface on the local transport properties of the two-dimensional electron gas (literal)

Abstract

• The electron mean free path (l(gr)) is \"locally\" evaluated by scanning capacitance spectroscopy on graphene obtained with different preparation methods and on different substrates, i.e., graphene exfoliated from highly oriented pyrolitic graphite (HOPG) and deposited (DG) on 4H-SiC(0001) and on SiO2 and epitaxial graphene grown on 4H-SiC (0001) (EG). l(gr) in DG on SiC was more than four times larger than in DG on SiO2. The improved mean free path is explained by the higher permittivity of SiC compared to SiO2, yielding a better dielectric screening of charged-impurities, and by the weaker coupling of graphene two-dimensional-electron-gas with surface polar phonons of SiC. On the other hand, l(gr) on EG is on average similar to 0.4 times that on DG-SiC and exhibits large variations from point to point, due to the presence of a laterally inhomogeneous positively charged layer at EG/SiC interface. (literal)

Prodotto di

• Nanotecnologie e tecnologie avanzate per elettronica integrata (MD.P05.003.004) (Modulo)
• Institute for microelectronics and microsystems (IMM) (Istituto)

Autore CNR

• FILIPPO GIANNAZZO (Persona)
• VITO RAINERI (Persona)
• Carmelo Vecchio (Persona)
• SUSHANT SUDAM SONDE (Unità di personale esterno)

Insieme di parole chiave

• Keywords of "Role of graphene/substrate interface on the local transport properties of the two-dimensional electron gas" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• VITO RAINERI (Persona)
• FILIPPO GIANNAZZO (Persona)
• Carmelo Vecchio (Persona)
• SUSHANT SUDAM SONDE (Unità di personale esterno)

Prodotto

• Institute for microelectronics and microsystems (IMM) (Istituto)
• Nanotecnologie e tecnologie avanzate per elettronica integrata (MD.P05.003.004) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied physics letters (Rivista)

Insieme di parole chiave di

• Keywords of "Role of graphene/substrate interface on the local transport properties of the two-dimensional electron gas" (Insieme di parole chiave)