= Klaus von Klitzing
{c}
{tag=Physicist}
{wiki}
= K. von Klitzing
{c}
{synonym}
= K. v. Klitzing
{c}
{synonym}
<Klaus von Klitzing> coauthored the discovery of precisely quantized Hall resistance in a silicon device containing a <two-dimensional electron gas>. In a strong <magnetic field>, resistance plateaus followed values set by $h/e^2$ and an integer filling index, rather than changing smoothly with every microscopic device parameter. The 1980 work used the reproducibility for a precision-constants measurement. The <integer quantum Hall effect> thus connects a collective electronic state with a robust electrical reference.<New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall Resistance by Klaus von Klitzing and others>[Physical Review Letters 45, 494 (1980), silicon-device Hall-resistance measurements]{ref}
A <physicist>.<Professional profile of Klaus von Klitzing>[Independent professional identity]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Klaus_von_Klitzing_2015.jpg?width=260]
{title=Portrait of <Klaus von Klitzing>}
{description=Pontifical Academy of Sciences; 27 October 2015. https://creativecommons.org/licenses/by-sa/4.0/[CC BY-SA 4.0], via Wikimedia Commons.}
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