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Quantum transport in ferromagnetic permalloy nanostructures

URN to cite this document:
urn:nbn:de:bvb:355-epub-78438
Neumaier, Daniel ; Vogl, Anton ; Eroms, Jonathan ; Weiss, Dieter
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Date of publication of this fulltext: 05 Aug 2009 13:57


Abstract

We studied phase-coherent phenomena in mesoscopic permalloy (Ni81Fe19) samples by exploring low-temperature transport. Both differential conductance as a function of bias voltage and magnetoconductance of individual wires display conductance fluctuations. Analysis of these fluctuations yields a phase coherence length of ${\approx}$250 nm at 25 mK as well as a 1/sqrt(T) temperature dependence. To ...

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