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Superconductivity in Graphene and Carbon Nanotubes

Proximity effect and nonlocal transport

  • Book
  • © 2014

Overview

Authors:
  1. Pablo Burset Atienza

    1. Institute for Theoretical Physics and Astrophysics, University of Würzburg, Würzburg, Germany

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  • Nominated as an outstanding Ph.D. thesis by the Autonomous University of Madrid, Spain
  • Winner of the University's Exceptional Doctoral Award
  • Cited more than 50 times in specialized journals by 2012 (year of defense)
  • Provides a major contribution to understanding and computing the electronic structure and dynamics at a graphene-superconductor interface
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (7 chapters)

  1. Front Matter

    Pages i-xix
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  2. Introduction

    • Pablo Burset Atienza
    Pages 1-5

  3. Background and Theoretical Framework

    • Pablo Burset Atienza
    Pages 7-30

  4. Green Functions Techniques for Graphene Layers with Edges

    • Pablo Burset Atienza
    Pages 31-50

  5. The Graphene-Superconductor Interface

    • Pablo Burset Atienza
    Pages 51-81

  6. Nonlocal Transport in Graphene

    • Pablo Burset Atienza
    Pages 83-99

  7. Cooper Pair Beam Splitters in Double Quantum Dots

    • Paulo Burset Atienza
    Pages 101-114

  8. Summary and Conclusions

    • Pablo Burset Atienza
    Pages 115-117

  9. Back Matter

    Pages 119-157
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Keywords

About this book

The unique electronic band structure of graphene gives rise to remarkable properties when in contact with a superconducting electrode. In this thesis two main aspects of these junctions are analyzed: the induced superconducting proximity effect and the non-local transport properties in multi-terminal devices. For this purpose specific models are developed and studied using Green function techniques, which allow us to take into account the detailed microscopic structure of the graphene-superconductor interface. It is shown that these junctions are characterized by the appearance of bound states at subgap energies which are localized at the interface region. Furthermore it is shown that graphene-supercondutor-graphene junctions can be used to favor the splitting of Cooper pairs for the generation of non-locally entangled electron pairs. Finally, using similar techniques the thesis analyzes the transport properties of carbon nanotube devices coupled with superconducting electrodes and in graphene superlattices.

Authors and Affiliations

  • Institute for Theoretical Physics and Astrophysics, University of Würzburg, Würzburg, Germany

    Pablo Burset Atienza

About the author

Pablo Burset is a postdoctoral researcher at Wuerzburg University (Germany). He received his bachelor's degree from Universidad Complutense Madrid and his Ph.D. from Universidad Autonoma Madrid, both in Physics. His theoretical research focuses on the quantum transport properties of graphene, carbon nanotubes and topological insulators when in electrical contact with superconducting electrodes.

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