Magnetic impurity formation in quantum point contacts

Tomaž Rejec () and Yigal Meir
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Tomaž Rejec: Department of Physics
Yigal Meir: Department of Physics

Nature, 2006, vol. 442, issue 7105, 900-903

Abstract: A mysterious step at 0.7G0 — a so-called '0.7 anomaly' — in a quantum point contact experiment has been suggested to signify the presence of an intrinsic magnetic impurity (an electronic state with a spin-1/2 magnetic moment) at low electron densities. This idea receives strong support from new detailed calculations.

Date: 2006
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DOI: 10.1038/nature05054

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