Measuring overlaps in mesoscopic spin glasses via conductance fluctuations

David Carpentier, Edmond Orignac

Published 2007-10-18Version 1

We consider the electonic transport in a mesoscopic metallic spin glasses. We show that the distribution of overlaps between spin configurations can be inferred from the reduction of the conductance fluctuations by the magnetic impurities. Using this property, we propose new experimental protocols to probe spin glasses directly through their overlaps.