Room-Temperature Quantum Hall Effect in Graphene
By K. Novoselov, Z. Jiang, Y. Zhang, S. Morozov, Horst L. Stormer, U. Zeitler, J. Maan, G. Boebinger, Philip Kim, A.K. Geim. Science, 2007
2,819 citations recorded by the source corpus.
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.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/9a2b73eb9c9a3a0ced33998776dad9af41f97c6a
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In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Colloquium: The transport properties of graphene: An introduction (2010, background): “Also, the quantum Hall effect in graphene has been observed at room temperature (Novoselov et al., 2007) and recently in epitaxial graphene as well (Wu et al., 2009), which can be produced in quasi-free standing form (Riedl et al., 2009).”
- Energy gaps and a zero-field quantum Hall effect in graphene by strain engineering (2009, background): “Among many remarkable qualities of graphene, its electronic properties attract particular interest due to a massless chiral character of charge carriers, which leads to such unusual phenomena as metallic conductivity in the limit of no carriers and the half-integer quantum Hall effect (QHE) observab”
- Graphene: A Rising Star on the Horizon of Materials Science (2012, background): “Graphene exhibits many exciting properties such as half-integer room-temperature quantum Hall effect [6], long-range ballistic transport with almost ten times greater electron mobility than of silicon (Si), availability of charge carriers that behave as massless relativistic quasi particle (Dirac fe”
- Single-electron current sources: towards a refined definition of ampere (2012, background): “An important recent discovery is that graphene can be used to realize an accurate and very robust QHR standard (Janssen et al., 2011; Novoselov et al., 2007; Tzalenchuk et al., 2010; Zhang et al., 2005).”