6533b7dcfe1ef96bd1272972
RESEARCH PRODUCT
Generation of energy selective excitations in quantum hall edge states
Frank HohlsVyacheslavs KashcheyevsKlaus PierzBernd KaestnerUli ZeitlerThomas WeimannC. LeichtE. V. KurganovaP. MirovskyHans Werner Schumachersubject
FOS: Physical sciences02 engineering and technologyElectronCorrelated Electron Systems / High Field Magnet Laboratory (HFML)Quantum Hall effect7. Clean energy01 natural sciences0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)Materials ChemistryPerpendicularElectrical and Electronic EngineeringWell-defined010306 general physicsPhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsFilling factorRelaxation (NMR)021001 nanoscience & nanotechnologyCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsMagnetic fieldComputingMethodologies_DOCUMENTANDTEXTPROCESSING0210 nano-technologyFermi gasdescription
We operate an on-demand source of single electrons in high perpendicular magnetic fields up to 30T, corresponding to a filling factor below 1/3. The device extracts and emits single charges at a tunable energy from and to a two-dimensional electron gas, brought into well defined integer and fractional quantum Hall (QH) states. It can therefore be used for sensitive electrical transport studies, e.g. of excitations and relaxation processes in QH edge states.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |