[Viewpoint:] 40 years of the quantum Hall effect

von Klitzing, K.; Chakraborty, T.; Kim, P.; Madhavan, V.; Dai, X.; McIver, J. W.; Tokura, Y.; Savary, L.; Smirnova, D.; Rey, A. M.; Felser, C.; Gooth, J.; Qi, X.

doi:10.1038/s42254-020-0209-1

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[Viewpoint:] 40 years of the quantum Hall effect

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McIver, J. W.
Ultrafast Transport in Quantum Materials, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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https://dx.doi.org/10.1038/s42254-020-0209-1
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von Klitzing, K., Chakraborty, T., Kim, P., Madhavan, V., Dai, X., McIver, J. W., et al. (2020). [Viewpoint:] 40 years of the quantum Hall effect. Nature Reviews Physics, 2(8), 397-401. doi:10.1038/s42254-020-0209-1.

Cite as: https://hdl.handle.net/21.11116/0000-0006-DF84-A

Abstract

The discovery of the quantum Hall effect (QHE) marked a turning point in condensed-matter physics. The measurement of the Hall resistance showed that electronic resistance could be defined precisely in terms of fundamental constants, even in a disordered and irregular sample. Over the past 40 years, the QHE has inspired new theories and led to experimental discoveries in a range of fields going beyond solid-state electronics to photonics and quantum entanglement. In this Viewpoint, physicists reflect on how the QHE has influenced their research.