Publication Date:
2005-06-18
Description:
The application of single molecules as templates for nanodevices is a promising direction for nanotechnology. We used a pair of suspended DNA molecules as templates for superconducting two-nanowire devices. Because the resulting wires are very thin, comparable to the DNA molecules themselves, they are susceptible to thermal fluctuations typical for one-dimensional superconductors and exhibit a nonzero resistance over a broad temperature range. We observed resistance oscillations in these two-nanowire structures that are different from the usual Little-Parks oscillations. Here, we provide a quantitative explanation for the observed quantum interference phenomenon, which takes into account strong phase gradients created in the leads by the applied magnetic field.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hopkins, David S -- Pekker, David -- Goldbart, Paul M -- Bezryadin, Alexey -- New York, N.Y. -- Science. 2005 Jun 17;308(5729):1762-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15961664" target="_blank"〉PubMed〈/a〉
Keywords:
*Alloys
;
*Dna
;
Electric Conductivity
;
Electric Impedance
;
Germanium
;
Magnetics
;
Mathematics
;
Metals
;
Molybdenum
;
*Nanostructures
;
Nanotechnology
;
Thermodynamics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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