Development of 1 $\text{M} {\Omega }$ Quantum Hall Array Resistance Standards

Oe, Takehiko; Gorwadkar, Sucheta; Itatani, Taro; Kaneko, Nobu‐Hisa

doi:10.1109/tim.2016.2620218

Cited by 21 publications

(26 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…State-of-the-art series-connected QHR elements require complicated lithography steps to realize multi-layer interconnections and to ensure that the Hall contacts have no electrical contact to the S/D contacts while crossing the current path [6], [20]. This is to avoid picking up any Hall voltages occurring in the S/D metal contact pads as well as voltages due to the S/D current and ohmic resistance in the region of the current terminals.…”

Section: Resultsmentioning

confidence: 99%

Two-Terminal and Multi-Terminal Designs for Next-Generation Quantized Hall Resistance Standards: Contact Material and Geometry

Kruskopf

Rigosi

Panna

et al. 2019

IEEE Trans. Electron Devices

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Two-Terminal and Multi-Terminal Designs for Next-Generation Quantized Hall Resistance Standards: Contact Material and Geometry

Kruskopf

Rigosi

Panna

et al. 2019

IEEE Trans. Electron Devices

View full text Add to dashboard Cite

show abstract

“…It is worth noting that the usage of a QHARS for each bridge arm may reduce the number of the required QHE elements with respect to a resistance comparison with a single QHARS. In fact, for instance, let us consider R x ≈ 1 MΩ, a resistance value that can be obtained, with good approximation, as (10 150/131)R H with a QHARS with 88 QHE elements [20,32]. From figure 2, the bridge balance equation would yield…”

Section: Further Developmentsmentioning

confidence: 99%

Implementation of a graphene quantum Hall Kelvin bridge-on-a-chip for resistance calibrations

et al. 2020

View full text Add to dashboard Cite

The unique properties of the quantum Hall effect allow one to revisit traditional measurement circuits with a new flavour. In this paper we present the first realization of a quantum Hall Kelvin bridge for the calibration of standard resistors directly against the quantum Hall resistance. The bridge design is particularly simple and requires a minimal number of instruments. The implementation here proposed is based on the bridge-on-a-chip, an integrated circuit composed of three graphene quantum Hall elements and superconducting wiring. The accuracy achieved in the calibration of a 12 906 Ω standard resistor is of a few parts in 10 8 , at present mainly limited by the prototype device and the interferences in the current implementation, with the potential to achieve few parts in 10 9 , which is the level of the systematic uncertainty of the quantum Hall Kelvin bridge itself.

show abstract

“…In Fig. 8, recent quantum Hall array devices developed at NMIJ/AIST are also shown, which can be used as an intrinsic resistive voltage divider [36,37], a decade-valued QHRS [38,39], a high-value resistance standard, and a voltage detector [39].…”

Section: Principlementioning

confidence: 99%

Review of quantum electrical standards and benefits and effects of the implementation of the ‘revised SI’

Kaneko

2017

IEEJ Transactions Elec Engng

Self Cite

View full text Add to dashboard Cite

In the present International System of Units (SI), the Josephson effect and quantum Hall effect have been utilized for voltage and resistance primary standards, and the electrical current standard has been derived from a combination of the two quantum standards. In 2018, it is planned that the SI will be revised based on the latest measurements results of the Planck constant, elementary charge, Avogadro constant, and Boltzmann constant. The adoption of the 'Revised SI' means we shall finally terminate the traceability of the kilogram tied to an artifact (the international prototype of the kilogram) and start a new traceability of the kilogram to the Planck constant h. In electricity and magnetism metrology, and related precision measurements, the traceability presently based on the 'conventional values' of the Josephson constant and the von Klitzing constant is going to be switched to the revised traceability based on the Planck constant and elementary charge. In this article, the foundation of the quantum electrical measurements and how the Revised SI, which is based purely on fundamental physical constants and quantum effects, will bring us a long-term benefit with negligible impact to industry are detailed.

show abstract

Development of 1 $\text{M} {\Omega }$ Quantum Hall Array Resistance Standards

Cited by 21 publications

References 15 publications

Two-Terminal and Multi-Terminal Designs for Next-Generation Quantized Hall Resistance Standards: Contact Material and Geometry

Two-Terminal and Multi-Terminal Designs for Next-Generation Quantized Hall Resistance Standards: Contact Material and Geometry

Implementation of a graphene quantum Hall Kelvin bridge-on-a-chip for resistance calibrations

Review of quantum electrical standards and benefits and effects of the implementation of the ‘revised SI’

Contact Info

Product

Resources

About