Signatures of bandlike tunneling in granular nanowires
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
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.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:kth:diva-38187DOI: 10.1103/PhysRevB.72.113411ISI: 000232229100038ScopusID: 2-s2.0-29744435284OAI: oai:DiVA.org:kth-38187DiVA: diva2:436179
QC 201108222011-08-222011-08-222011-08-22Bibliographically approved