Impact of electron heating on the equilibration between quantum Hall edge channels (Articolo in rivista)

Type

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

Label

• Impact of electron heating on the equilibration between quantum Hall edge channels (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevB.84.235318 (literal)

Alternative label

• Paradiso, N; Heun, S; Roddaro, S; Sorba, L; Beltram, F; Biasiol, G (2011)
  Impact of electron heating on the equilibration between quantum Hall edge channels
  in Physical review. B, Condensed matter and materials physics
  (literal)

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

• Paradiso, N; Heun, S; Roddaro, S; Sorba, L; Beltram, F; Biasiol, G (literal)

Pagina inizio

• 235318 (literal)

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

• 84 (literal)

Rivista

• Physical review. B, Condensed matter and materials physics (Rivista)

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

• 23 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• 1. CNR, NEST, Ist Nanosci, I-56100 Pisa, Italy 2. Scuola Normale Super Pisa, Pisa, Italy 3. CNR, Ist Off Mat, Lab TASCy, Trieste, Italy (literal)

Titolo

• Impact of electron heating on the equilibration between quantum Hall edge channels (literal)

Abstract

• When two separately contacted quantum Hall (QH) edge channels are brought into interaction, they can equilibrate their imbalance via scattering processes. In this work, we use a tunable QH circuit to implement a junction between copropagating edge channels, the length of which can be controlled with continuity. Such a variable device allows us to investigate how current-voltage characteristics evolve when the junction length d is changed. Recent experiments with fixed geometry reported a significant reduction of the threshold voltage for the onset of photon emission, the origin of which is still under debate. Our spatially resolved measurements reveal that this threshold shift depends on the junction length. We discuss this unexpected result on the basis of a model that demonstrates that a heating of electrons is the dominant process responsible for the observed reduction of the threshold voltage. (literal)

Prodotto di

• Nanofabbricazione (MD.P06.017.001) (Modulo)
• Fenomeni coerenti in nanosistemi semiconduttori ed ibridi (MD.P06.021.002) (Modulo)

Autore CNR

• FABIO BELTRAM (Persona)
• LUCIA SORBA (Unità di personale interno)
• GIORGIO BIASIOL (Unità di personale interno)
• NICOLA PARADISO (Persona)
• STEFANO RODDARO (Persona)
• STEFAN HEUN (Persona)

Incoming links:

Autore CNR di

• LUCIA SORBA (Unità di personale interno)
• STEFAN HEUN (Persona)
• STEFANO RODDARO (Persona)
• GIORGIO BIASIOL (Unità di personale interno)
• FABIO BELTRAM (Persona)
• NICOLA PARADISO (Persona)

Prodotto

• Fenomeni coerenti in nanosistemi semiconduttori ed ibridi (MD.P06.021.002) (Modulo)
• Nanofabbricazione (MD.P06.017.001) (Modulo)

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

• Physical review. B, Condensed matter and materials physics (Rivista)