Quantum breakdown of superconductivity in low-dimensional materials

Benjamin Sacépé*, Mikhail Feigel’man, Teunis M. Klapwijk

*Corresponding author for this work

    Research output: Contribution to journalReview articleScientificpeer-review

    37 Citations (Scopus)
    21 Downloads (Pure)

    Abstract

    In order to understand the emergence of superconductivity it is useful to study the reverse process and identify the various pathways that lead to its destruction. One way is to increase the amount of disorder, as this leads to an increase in Coulomb repulsion that overpowers the attractive interaction responsible for Cooper pair formation. A second pathway—applicable to uniformly disordered materials—is to utilize the competition between superconductivity and Anderson localization, as this leads to electronic granularity in which phase and amplitude fluctuations of the superconducting order parameter play a role. Finally, a third pathway is to construct an array of superconducting islands coupled by some form of proximity effect that leads from a superconducting state to a state with finite resistivity, which appears like a metallic groundstate. This Review Article summarizes recent progress in understanding of these different pathways, including experiments in low dimensional materials and application in superconducting quantum devices.

    Original languageEnglish
    Pages (from-to)734-746
    JournalNature Physics
    Volume16
    Issue number7
    DOIs
    Publication statusPublished - 2020

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