Effect of morphology on the superconductor-insulator transition in one-dimensional nanowires

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Rogachev, Andrey
Other Author Bollinger, A. T.; Remeika, M.; Bezryadin, A.
Title Effect of morphology on the superconductor-insulator transition in one-dimensional nanowires
Date 2004-05
Description We study the effect of morphology on the low-temperature behavior of superconducting nanowires which vary in length from 86 nm to 188 nm. A well-defined superconductor-insulator transition is observed only in the family of homogeneous wires, in which case the transition occurs when the normal resistance is close to h/4e2. 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 WLC's 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.
Type Text
Publisher American Physical Society
Journal Title Physical Review B
Volume 69
Issue 18
DOI 10.1103/PhysRevB.69.180503
citatation_issn 1098-0121
Subject One-dimensional wires; Superconductor-insulator transition; Homogeneous wires; Inhomogeneous wires; Morphology; Low-temperature behavior
Subject LCSH Nanowires; Superconductivity
Language eng
Bibliographic Citation Bollinger, A. T., Rogachev, A., Remeika, M., & Bezryadin, A. (2004). Effect of morphology on the superconductor-insulator transition in one-dimensional nanowires. Physical Review B - Condensed Matter and Materials Physics, 69(18), 180503.
Rights Management (c) American Physical Society http://dx.doi.org/10.1103/PhysRevB.69.180503
Format Medium application/pdf
Format Extent 147,234 bytes
Identifier ir-main,11753
ARK ark:/87278/s6cv526z
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 705566
Reference URL https://collections.lib.utah.edu/ark:/87278/s6cv526z
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