# Towards a quantum resistance standard based on epitaxial graphene.

@article{Tzalenchuk2010TowardsAQ, title={Towards a quantum resistance standard based on epitaxial graphene.}, author={Alexander Tzalenchuk and Samuel Lara‐Avila and Alexei Kalaboukhov and Sara Paolillo and Mikael Syv{\"a}j{\"a}rvi and R. Yakimova and Olga Kazakova and T. J. B. M. Janssen and Vladimir I. Fal’ko and Sergey E. Kubatkin}, journal={Nature nanotechnology}, year={2010}, volume={5 3}, pages={ 186-9 } }

The quantum Hall effect allows the international standard for resistance to be defined in terms of the electron charge and Planck's constant alone. The effect comprises the quantization of the Hall resistance in two-dimensional electron systems in rational fractions of R(K) = h/e(2) = 25,812.807557(18) Omega, the resistance quantum. Despite 30 years of research into the quantum Hall effect, the level of precision necessary for metrology--a few parts per billion--has been achieved only in… Expand

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Quantum Hall resistance standard in graphene devices under relaxed experimental conditions.

- Medicine, Physics
- Nature nanotechnology
- 2015

The measured agreement of the quantized Hall resistance in graphene and GaAs/AlGaAs, with an ultimate uncertainty of 8.2 × 10(-11), supports the universality of the quantum Hall effect and provides evidence of the relation of the quantify Hall resistance with h and e, crucial for the new Système International d'unités to be based on fixing such fundamental constants of nature. Expand

Exceptionally accurate large graphene quantum Hall arrays for the new SI

- Physics
- 2021

The quantum Hall effect (QHE) is a cornerstone in the new International System of Units (SI), wherein the base units are derived from seven fundamental constants such as Planck’s constant h and… Expand

Quantum Hall effect in graphene for resistance metrology : Disorder and quantization

- Materials Science
- 2015

The quantum Hall effect (QHE) observed in two dimensional electron gas placed at low temperature and under a strong perpendicular magnetic field, has revolutionized the resistance metrology since its… Expand

Engineering Epitaxial Graphene for Quantum Metrology

- Materials Science
- 2018

Quantum resistance metrology deals both with the precise and accurate measurement of electrical resistance, by utilizing the quantum hall effect (QHE) in two-dimensional electron gases (2DEGs) such… Expand

Quantum Hall devices on epitaxial graphene: towards large-scale integration

- Materials Science
- 2015

Quantum Hall devices have been used as the primary standard of electrical resistance for over two decades, and they are unlikely to be replaced in this role any time soon. The work presented in this… Expand

Chemical vapor deposited graphene for quantum Hall resistance standards

- Materials Science
- 2017

In this PhD project, we address the different aspects in the development of CVD graphene based quantum Hall resistance standards (QHR) for metrological applications. An interesting application of… Expand

Precision comparison of the quantum Hall effect in graphene and gallium arsenide

- Physics
- 2012

The half-integer quantum Hall effect in epitaxial graphene is compared with high precision to the well-known integer effect in a GaAs/AlGaAs heterostructure. We find no difference between the… Expand

Graphene, universality of the quantum Hall effect and redefinition of the SI system

- Physics
- 2011

The Systeme Internationale d'unites (SI) is about to undergo its biggest change in half a century by redefining the units for mass and current in terms of the fundamental constants h and e,… Expand

Quantum Hall resistance standards from graphene grown by chemical vapour deposition on silicon carbide

- Materials Science, Physics
- Nature communications
- 2015

Graphene-based QHRS can replace their GaAs counterparts by operating in as-convenient cryomagnetic conditions, but over an extended magnetic field range, and rely on a promising hybrid and scalable growth method and a fabrication process achieving low-electron-density devices. Expand

Towards a Graphene-Based Quantum Impedance Standard

- Physics
- 2014

Precision measurements of the quantum Hall resistance with alternating current (ac) in the kHz range were performed on epitaxial graphene in order to assess its suitability as a quantum standard of… Expand

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