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Signatures of bandlike tunneling in granular nanowires
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
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2005 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 72, no 11, 113411- p.Article in journal (Refereed) Published
Abstract [en]

We explore the problem of tunneling through disorderd nanowires, comprised of a random distribution of metallic grains, by means of a many-body model that captures the essential physics of the system. The random configuration of grains gives rise to a smooth bandlike set of states that mediates current flow through the nanowires. Analytical and numerical calculations show the characteristic signature of this unusual bandlike transport to be a quadratic variation of the current as a function of the applied voltage (i.e., I similar to V-2), a variation that is clearly observed in experimental studies of Pt/C composite nanowires.

Place, publisher, year, edition, pages
2005. Vol. 72, no 11, 113411- p.
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-38187DOI: 10.1103/PhysRevB.72.113411ISI: 000232229100038ScopusID: 2-s2.0-29744435284OAI: diva2:436179
QC 20110822Available from: 2011-08-22 Created: 2011-08-22 Last updated: 2011-08-22Bibliographically approved

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Fransson, Jonas
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