The effect of morphology on the superconductor-insulator transition in 1-D nanowires
arXiv:cond-mat/0401350 · doi:10.1103/PhysRevB.69.180503
Abstract
We study the effect of morphology on the low temperature behavior of superconducting nanowires of length 100 nm. A well-defined superconductor-insulator transition (SIT) is observed only in homogenous wires, in which case the transition occurs when the normal resistance is close to . Inhomogeneous wires, on the other hand, exhibit a mixed behavior, such that signatures of the superconducting and insulating regimes can be observed in the same sample. The resistance versus temperature curves of inhomogeneous wires show multiple steps, each corresponding to a weak link constriction (WLC) present in the wire. Similarly, each WLC generates a differential resistance peak when the bias current reaches the critical current of the WLC. Due to the presence of WLCs an inhomogeneous wire splits into a sequence of weakly interacting segments where each segment can act as a superconductor or as an insulator. Thus the entire wire then shows a mixed behavior.
arXiv comment4 pages, 4 figures, 1 table
References in corpus (6)
- Quantum suppression of superconductivity in ultrathin nanowires
- Quantum Phase Slips in Superconducting Nanowires
- Reply to the Comment on 'Quantum Phase Slips and Transport in Ultra-Thin Superconducting Wires'
- Superconducting properties of polycrystalline Nb nanowires templated by carbon nanotubes
- Suppression of $\bbox{T_c}$ in superconducting amorphous wires
- Universal transport in 2D granular superconductors
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