Title:
Coherent and Dissipative Transport in Metallic Atomic-Size Contacts

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dc.contributor.advisor Marchenkov, Alexei
dc.contributor.author Dai, Zhenting en_US
dc.contributor.committeeMember de Heer, Walter A.
dc.contributor.committeeMember Fedorov, Andrei G.
dc.contributor.committeeMember First, Phillip
dc.contributor.committeeMember Gole, James L.
dc.contributor.department Physics en_US
dc.date.accessioned 2008-02-07T18:51:01Z
dc.date.available 2008-02-07T18:51:01Z
dc.date.issued 2006-11-15 en_US
dc.description.abstract Thin-film niobium mechanically controlled break junctions and resistively shunted niobium mechanically-controlled break junctions were developed and successfully microfabricated. Using these devices, high-stability atomic size contacts were routinely produced and investigated both in the normal and superconducting states. Investigations of the two-level conductance fluctuations in the smallest contacts allowed the calculation of their specific atomic structure. Embedding resistive shunts close to the superconducting atomic-sized junctions affected the coherence of the electronic transport. Finally, point contact spectroscopy measurements provide evidence of the interaction of conduction electrons with the mechanical degrees of freedom of the atomic-size niobium contacts. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/19880
dc.publisher Georgia Institute of Technology en_US
dc.subject Atomic-size contacts en_US
dc.subject Mechanically controlled break junction en_US
dc.subject Quantum point contact en_US
dc.subject Andreev reflection en_US
dc.subject.lcsh Molecular electronics
dc.subject.lcsh Niobium
dc.subject.lcsh Superconductors
dc.title Coherent and Dissipative Transport in Metallic Atomic-Size Contacts en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename College of Sciences
local.contributor.corporatename School of Physics
relation.isOrgUnitOfPublication 85042be6-2d68-4e07-b384-e1f908fae48a
relation.isOrgUnitOfPublication 2ba39017-11f1-40f4-9bc5-66f17b8f1539
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