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Nature 447, 157-158 (10 May 2007) | doi:10.1038/447157a; Published online 9 May 2007
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Condensed-matter physics: Let's twist again
Christian Pfleiderer1
&
Ulrich K. Rö
ler2
Abstract
The spins of a layer of manganese atoms on a tungsten surface form a spiral pattern with a unique turning sense. Such 'chiral magnetic order' might exist in other, similar contexts, and could have many useful applications.
Objects that differ from their mirror image — human hands, for instance — have a turning sense. This phenomenon of handedness, or chirality, is found in many natural contexts, from the elementary particles participating in electroweak interactions, via organic molecules and hurricanes, all the way to galaxies.
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