Details

Autor(en) / Beteiligte

• Degiovanni, P.
• Grenier, Ch
• Fève, G.
• Altimiras, C.
• le Sueur, H.
• Pierre, F.

Titel

Plasmon scattering approach to energy exchange and high-frequency noise in ν = 2 quantum Hall edge channels

Ist Teil von

• Physical review. B, Condensed matter and materials physics, 2010-03, Vol.81 (12), Article 121302

Ort / Verlag

American Physical Society

Erscheinungsjahr

2010

Link zum Volltext

Quelle

American Physical Society [PROLA]

Beschreibungen/Notizen

• Inter-edge channel interactions in the quantum Hall regime at filling factor nu= 2 are analyzed within a plasmon scattering formalism. We derive analytical expressions for energy redistribution amongst edge channels and for high frequency noise, which are shown to fully characterize the low energy plasmon scattering. In the strong interaction limit, the predictions for energy redistribution are compared with recent experimental data and found to reproduce most of the observed features. Quantitative agreement can be achieved by assuming 25 % of the injected energy is lost towards other degrees of freedom, possibly the additional gapless excitations predicted for smooth edge potentials.