August 1, 2025AIP AdvancesOpen Access

Graphene-based quantum Hall arrays in cross–square recursion configurations

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Experimental design improves resistance to 27.61 GΩ in graphene QHARSs, suggesting enhanced metrology applications.

Achieving high resistance values up to 27.61 GΩ enhances quantum resistance standards.
Effective quantized resistance outputs improved through cross–square configurations and pseudofractal recursion.
Fabrication methods move beyond conventional designs to maximize accessibility to high resistances.
Teraohmmeter measurements highlight limits of wet cryogenic systems due to resistance leakage.

Tran et al. (2025) studied this question.

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