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  • 文献标题:   Graphene Quantum Hall Effect Devices for AC and DC Electrical Metrology
  • 文献类型:   Article
  • 作　　者:   KRUSKOPF M, BAUER S, PIMSUT Y, CHATTERJEE A, PATEL DK, RIGOSI AF, ELMQUIST RE, PIERZ K, PESEL E, GOTZ M, SCHURR J
  • 作者关键词:   resistance, electrical resistance measurement, graphene, magnetic shielding, magnetic noise, frequency measurement, standard, alternating current, dissipation factor, doubleshield, epitaxial graphene, magnetocapacitance, magnetotransport, precision measurement, quantized hall resistance qhr standard, quantum hall effect qhe, superconducting contact
  • 出版物名称:   IEEE TRANSACTIONS ON ELECTRON DEVICES
  • ISSN:   0018-9383 EI 1557-9646
  • 通讯作者地址:  
  • 被引频次:   7
  • DOI:   10.1109/TED.2021.3082809
  • 出版年:   2021

▎ 摘　　要

A new type of graphene-based quantum Hall standards is tested for electrical quantum metrology applications at alternating current (ac) and direct current (dc). The devices are functionalized with Cr(CO)(3) to control the charge carrier density and have branched Hall contacts based on NbTiN superconducting material. The work is an in-depth study about the characteristic capacitances and related losses in the ac regime of the devices and about their performance during precision resistance measurements at dc and ac.