Magnetoresistance oscillations in superconducting granular niobium nitride nanowires.
We report on magnetoresistance oscillations in superconducting NbN{sub x} nanowires synthesized through ammonia gas annealing of NbSe{sub 3} 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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 966681
- Report Number(s):
- ANL/MSD/JA-65422; TRN: US200921%%536
- Journal Information:
- Phys. Rev. B, Vol. 80, Issue 2009; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- ENGLISH
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