0000000000394602

AUTHOR

Uli Zeitler

showing 2 related works from this author

Generation of energy selective excitations in quantum hall edge states

2011

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.

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 gas
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Three-Dimensional Superconducting Nanohelices Grown by He+-Focused-Ion-Beam Direct Writing

2019

Novel schemes based on the design of complex three-dimensional (3D) nanoscale architectures are required for the development of the next generation of advanced electronic components. He+ focused-ion-beam (FIB) microscopy in combination with a precursor gas allows one to fabricate 3D nanostructures with an extreme resolution and a considerably higher aspect ratio than FIB-based methods, such as Ga+ FIB-induced deposition, or other additive manufacturing technologies. In this work, we report the fabrication of 3D tungsten carbide nanohelices with on-demand geometries via controlling key deposition parameters. Our results show the smallest and highest-densely packed nanohelix ever fabricated s…

Research programFocused-ion-beam-induced depositionLibrary scienceBioengineeringGinzburg−Landau equation02 engineering and technologyEuropean Social FundPhase slipsHelium ion microscopePolitical scienceSemiconductors and NanostructuresGeneral Materials ScienceCost action[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]ComputingMilieux_MISCELLANEOUSGinzburg-Landau equationNanosuperconductorsMechanical EngineeringGinzburg landau equationFísicaQuímicaGeneral ChemistryDirect writing021001 nanoscience & nanotechnologyCondensed Matter PhysicsWork (electrical)Christian ministryHigh field0210 nano-technologyThree-dimensional nanoprinting
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