Dynamic Josephson Vortex Phenomena

Lankhorst, Marc M.

doi:10.3990/1.9789036553452

Cited by 2 publications

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References 113 publications

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“…To verify the measurements, simulations on JJA were performed by the simulation package JJAsim developed by M Lankhorst [24]. These simulations are based on the resistive shunted capacitive junction model.…”

Section: Methodsmentioning

confidence: 99%

Phase interference for probing topological fractional charge in a BiSbTeSe₂-based Josephson junction array

et al. 2021

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Fractional charges can be induced by magnetic fluxes at the interface between a topological insulator (TI) and a type-II superconductor due to axion electrodynamics. In a Josephson junction array with a hole in the middle, these electronic states can have phase interference in an applied magnetic field with ṕ 4 2 period, in addition to the 2π interference of the Cooper pairs. Here, we test an experimental configuration for probing the fractional charge and report the observation of phase interference effect in superconducting arrays with a hole in the middle in both Au-and TI-based devices. Our numerical simulations based on resistive shunted capacitive junction model are in good agreement with the experimental results. However, no clear sign of an axion charge-related interference effect was observed. We will discuss possible reasons and perspectives for future experiments.

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Section: Methodsmentioning

confidence: 99%

Phase interference for probing topological fractional charge in a BiSbTeSe₂-based Josephson junction array

et al. 2021

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“…To verify the measurements, simulations on JJA were performed by the simulation package JJAsim developed by Lankhorst [176]. These simulations are based on the Resistively Capacitance Shunted Junction (RSCJ) model.…”

Section: Chaptermentioning

confidence: 99%

Axion electrodynamics in topological matter

Wielens¹

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Members:p prof. dr. J. van den Brink Leibniz Institute for Solid State and Materials Research Dresden dr. E van Heumen University of Amsterdam prof. dr. ir. J.W.M. Hilgenkamp University of Twente dr. ir. M.P. de Jong University of Twente prof. dr. A.V. Kimel Radboud University prof. dr. T.T.M. Palstra University of TwenteThe field of axion electrodynamics first emerged in high energy physics and then found its way to the field of condensed matter physics when it was found that modifications to Maxwell's equations can be present near the boundaries of topological materials.In this chapter, we review the derivation of the equations governing axion electrodynamics, and then discuss the experimental proposals that form the basis of the upcoming Chapters 5-7. While the equations are well established already for a long time, their implications and the requirements for the observation of the topological magnetoelectric effects in topological matter are still under debate. We aim to give an overview of the recent advances and open questions within the field.

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Dynamic Josephson Vortex Phenomena

Abstract: Motivation and outlineThis chapter motivates the research presented in this thesis and gives a short overview of all topics that are discussed.

Cited by 2 publications

References 113 publications

Phase interference for probing topological fractional charge in a BiSbTeSe₂-based Josephson junction array

Phase interference for probing topological fractional charge in a BiSbTeSe₂-based Josephson junction array

Axion electrodynamics in topological matter

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Dynamic Josephson Vortex Phenomena

Abstract: Motivation and outlineThis chapter motivates the research presented in this thesis and gives a short overview of all topics that are discussed.

Cited by 2 publications

References 113 publications

Phase interference for probing topological fractional charge in a BiSbTeSe2-based Josephson junction array

Phase interference for probing topological fractional charge in a BiSbTeSe2-based Josephson junction array

Axion electrodynamics in topological matter

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Phase interference for probing topological fractional charge in a BiSbTeSe₂-based Josephson junction array

Phase interference for probing topological fractional charge in a BiSbTeSe₂-based Josephson junction array