The 2022 Katharine B. Gebbie Young Investigator Award from Sigma Xi recognizes NIST researcher Albert Rigosi for his work using the quantum Hall effect in graphene to define the ohm. This marks the first time the US has used graphene in defining the electrical unit of the ohm.
Rigosi’s research focuses on stabilizing and controlling graphene’s electron density over large areas, a critical step for commercializing these devices. His team has also developed arrays using superconducting electrical contacts to expand the utility of graphene-based devices. Future work may explore p-n junctions to access multiple quantum Hall resistance values.
The award highlights NIST’s leadership in advancing quantum technologies and their potential impact on electrical measurement standards. Rigosi’s work could lead to more precise and reliable electrical measurements, benefiting industries that rely on these standards.
Source: https://www.nist.gov/awards/2022-katharine-b-gebbie-young-investigator-award-albert-rigosi
Keywords: graphene, quantum Hall effect, superconducting, electron density
