Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-10-22
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
In this letter we study the coherent electronic transport through a metallic nanowire with magnetic impurities. The spins of these impurities are considered as frozen to mimic a low temperature spin glass phase. The transport properties of the wire are derived from a numerical Landauer technique which provides the conductance of the wire as a function of the disorder con?guration. We show that the correlation of conductance between two spin con?gurations provides a measure of the correlation between these spin con?gurations. This correlation corresponds to the mean ?eld overlap in the absence of any spatial order between the spin con?gurations. Moreover, we ?nd that these conductance correlations are sensitive to the spatial order between the two spin con?gurations, i.e whether the spin ?ips between them occur in a compact region or not.
Carpentier David
Paulin Guillame
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