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Generation of energy selective excitations in quantum Hall edge states

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 نشر من قبل Christoph Leicht
 تاريخ النشر 2010
  مجال البحث فيزياء
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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.



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