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References (13)
-
(2006)
Sci. Am. Philos. Mag -
(1182)
͑2000͒. 31 Using Ϸ 0.55 m ͓see B. L. T. Plourde, D. J. Van -
Nat. Nanotechnol -
(2002)
we estimate a thickness d ≈ 6.68 nm, compared to the sputtered thickness of 10.5 nm. The film can have become oxidized -
(1209)
Phys. Rev. J. Bardeen, Rev. Mod. Phys -
(2004)
Arutyunov and T -
Eksp. Teor. Fiz -
(1999)
Science 284 -
Appl. Phys. Lett -
Phys. Rev. Lett -
(1987)
−3 K) is smaller than that of the film leads (∼ 5.5 − 6 K), due to suppression by disorder and electron-electron interactions -
(1492)
Phys. Rev. B J. Phys. C J. Phys. C Phys. Rev -
Nat. Phys
- Publisher
- American Physical Society (APS)
- Copyright
- Copyright © 2007 The American Physical Society
- ISSN
- 1550-235X
- DOI
- 10.1103/PhysRevB.76.220506
- Publisher site
- See Article on Publisher Site
Abstract
We have developed a superconducting phase gradiometer consisting of two parallel DNA-templated nanowires connecting two thin-film leads. We have ramped the cross current flowing perpendicular to the nanowires, and observed oscillations in the lead-to-lead resistance due to cross-current-induced phase differences. By using this gradiometer we have measured the temperature- and magnetic-field dependence of the superfluid density, and observed an amplification of phase gradients caused by elastic vortex displacements. We examine our data in light of Miller-Bardeen theory of dirty superconductors and a microscale version of Campbell’s model of field penetration.
Journal
Physical Review B – American Physical Society (APS)
Published: Dec 1, 2007