Quantum hall effect observed at room temperature

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This image is a scanning electron microscope micrograph of a strongly crumpled graphene sheet on a silicon wafer. The lateral size of the image is 20 microns. The Si wafter is at the bottom right corner of the image. Credit: Courtesy of the Foundatio ...
This image is a scanning electron microscope micrograph of a strongly crumpled graphene sheet on a silicon wafer. The lateral size of the image is 20 microns. The Si wafter is at the bottom right corner of the image. Credit: Courtesy of the Foundation of Fundamental Research on Matter, the Netherlands

Using the highest magnetic fields in the world, an international team of researchers has observed the quantum Hall effect – a much studied phenomenon of the quantum world – at room temperature.


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