Phonon emission and arrival times of electrons from a single-electron source

Cited 10 time in webofscience Cited 0 time in scopus
  • Hit : 179
  • Download : 0
In recent charge-pump experiments, single electrons are injected into quantum Hall edge channels at energies significantly above the Fermi level. We consider here the relaxation of these hot edge-channel electrons through longitudinal-optical-phonon emission. Our results show that the probability for an electron in the outermost edge channel to emit one or more phonons en route to a detector some microns distant along the edge channel suffers a double-exponential suppression with increasing magnetic field. This explains recent experimental observations. We also describe how the shape of the arrival-time distribution of electrons at the detector reflects the velocities of the electronic states post phonon emission. We show how this can give rise to pronounced oscillations in the arrival-time-distribution width as a function of magnetic field or electron energy.
Publisher
AMER PHYSICAL SOC
Issue Date
2016-01
Language
English
Article Type
Article
Keywords

PROBABILITY-DISTRIBUTION; CYCLOTRON-RESONANCE; QUANTUM-MECHANICS; SCATTERING; WAVE; OPTICS; AMPERE

Citation

PHYSICAL REVIEW B, v.93, no.3

ISSN
2469-9950
DOI
10.1103/PhysRevB.93.035436
URI
http://hdl.handle.net/10203/207182
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 10 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0