Room-Temperature Quantum Hall Effect in Graphene

2007/02/16 by Kostya S. Novoselov, K. S. Novoselov, Z. Jiang +13 · 20 citations
Materials Science · Physics and Astronomy · #Diamond and Carbon-based Materials Research #Graphene research and applications #Quantum and electron transport phenomena #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1126/science.1137201

published as Science 315, 1379 (2007). · Published in Science online 15 February 2007

openalex publication_date 2007/02/16 · arxiv created 2007/02/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

The quantum Hall effect (QHE), one example of a quantum phenomenon that occurs on a truly macroscopic scale, has attracted intense interest since its discovery in 1980 and has helped elucidate many important aspects of quantum physics. It has also led to the establishment of a new metrological standard, the resistance quantum. Disappointingly, however, the QHE has been observed only at liquid-helium temperatures. We show that in graphene, in a single atomic layer of carbon, the QHE can be measured reliably even at room temperature, which makes possible QHE resistance standards becoming available to a broader community, outside a few national institutions.

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