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A coaxial cryogenic probe for quantum Hall effect measurements in the AC regime

Martina Marzano, Ngoc Thanh Mai Tran, Vincenzo D Elia, Danilo Serazio, Emanuele Enrico, Massimo Ortolano, Klaus Pierz, Jan Kucera, Luca Callegaro
  • Abstract:
    The quantum Hall effect is the basis for the realisation of the resistance and impedance units in the revised International System of units of 2019. This paper describes a cryogenic probe that allows to set graphene Hall devices in quantisation conditions in a helium bath (4.2 K) and magnetic fields up to 6 T, to perform precision measurements in the ac regime with impedance bridges. The probe has a full coaxial wiring, isolated from the probe structure, and holds the device in a TO-8 socket. First characterisation experiments are reported on a GaAs device which shows quantisation at 5.5 T.
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  • DOI:
    _unreg_tc4-2020.44

Event details:

[EVENTDETAILS]
  • IMEKO TC:
    TC4
  • Event name:
    TC4 Symposium 2020 (ONLINE)
  • Title:

    24th IMEKO TC4 Symposium and 22nd International Workshop on ADC and DAC Modelling and Testing (IWADC)

  • Place:
    Palermo, ITALY
  • Time:
    14 September 2020 - 16 September 2020