Phys. Rev. B 80, 012504 (2009) [4 pages]Magnetoresistance oscillations in superconducting granular niobium nitride nanowiresReceived 7 June 2009; published 14 July 2009 We report on magnetoresistance oscillations in superconducting NbNx nanowires synthesized through ammonia gas annealing of NbSe3 precursor nanostructures. Even though the transverse dimensions of the nanowires are much larger than the superconducting coherence length, the voltage-current characteristics of these nanowires at low temperatures are reminiscent of one-dimensional superconductors where quantum phase slips are associated with the origin of dissipation. We show that both the magnetoresistance oscillations and voltage-current characteristics observed in this work result from the granular structure of our nanowires. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.80.012504
DOI:
10.1103/PhysRevB.80.012504
PACS:
74.78.Na, 74.25.Fy, 74.25.Qt, 74.81.Fa
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.