Topological superconductivity in skyrmion lattices

Abstract Atomic manipulation and interface engineering techniques have provided an intriguing approach to custom-designing topological superconductors and the ensuing Majorana zero modes, representing a paradigm for the realization of topological quantum computing and topology-based devices. Magnet-...

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Autores principales: Eric Mascot, Jasmin Bedow, Martin Graham, Stephan Rachel, Dirk K. Morr
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/37207aa9eb3e4175bb9aa6b1802c7c8a
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spelling oai:doaj.org-article:37207aa9eb3e4175bb9aa6b1802c7c8a2021-12-02T14:24:00ZTopological superconductivity in skyrmion lattices10.1038/s41535-020-00299-x2397-4648https://doaj.org/article/37207aa9eb3e4175bb9aa6b1802c7c8a2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41535-020-00299-xhttps://doaj.org/toc/2397-4648Abstract Atomic manipulation and interface engineering techniques have provided an intriguing approach to custom-designing topological superconductors and the ensuing Majorana zero modes, representing a paradigm for the realization of topological quantum computing and topology-based devices. Magnet-superconductor hybrid (MSH) systems have proven to be experimentally suitable to engineer topological superconductivity through the control of both the complex structure of its magnetic layer and the interface properties of the superconducting surface. Here, we demonstrate that two-dimensional MSH systems containing a magnetic skyrmion lattice provide an unprecedented ability to control the emergence of topological phases. By changing the skyrmion radius, which can be achieved experimentally through an external magnetic field, one can tune between different topological superconducting phases, allowing one to explore their unique properties and the transitions between them. In these MSH systems, Josephson scanning tunneling spectroscopy spatially visualizes one of the most crucial aspects underlying the emergence of topological superconductivity, the spatial structure of the induced spin–triplet correlations.Eric MascotJasmin BedowMartin GrahamStephan RachelDirk K. MorrNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-6 (2021)
institution DOAJ
collection DOAJ
language EN
topic Materials of engineering and construction. Mechanics of materials
TA401-492
Atomic physics. Constitution and properties of matter
QC170-197
spellingShingle Materials of engineering and construction. Mechanics of materials
TA401-492
Atomic physics. Constitution and properties of matter
QC170-197
Eric Mascot
Jasmin Bedow
Martin Graham
Stephan Rachel
Dirk K. Morr
Topological superconductivity in skyrmion lattices
description Abstract Atomic manipulation and interface engineering techniques have provided an intriguing approach to custom-designing topological superconductors and the ensuing Majorana zero modes, representing a paradigm for the realization of topological quantum computing and topology-based devices. Magnet-superconductor hybrid (MSH) systems have proven to be experimentally suitable to engineer topological superconductivity through the control of both the complex structure of its magnetic layer and the interface properties of the superconducting surface. Here, we demonstrate that two-dimensional MSH systems containing a magnetic skyrmion lattice provide an unprecedented ability to control the emergence of topological phases. By changing the skyrmion radius, which can be achieved experimentally through an external magnetic field, one can tune between different topological superconducting phases, allowing one to explore their unique properties and the transitions between them. In these MSH systems, Josephson scanning tunneling spectroscopy spatially visualizes one of the most crucial aspects underlying the emergence of topological superconductivity, the spatial structure of the induced spin–triplet correlations.
format article
author Eric Mascot
Jasmin Bedow
Martin Graham
Stephan Rachel
Dirk K. Morr
author_facet Eric Mascot
Jasmin Bedow
Martin Graham
Stephan Rachel
Dirk K. Morr
author_sort Eric Mascot
title Topological superconductivity in skyrmion lattices
title_short Topological superconductivity in skyrmion lattices
title_full Topological superconductivity in skyrmion lattices
title_fullStr Topological superconductivity in skyrmion lattices
title_full_unstemmed Topological superconductivity in skyrmion lattices
title_sort topological superconductivity in skyrmion lattices
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/37207aa9eb3e4175bb9aa6b1802c7c8a
work_keys_str_mv AT ericmascot topologicalsuperconductivityinskyrmionlattices
AT jasminbedow topologicalsuperconductivityinskyrmionlattices
AT martingraham topologicalsuperconductivityinskyrmionlattices
AT stephanrachel topologicalsuperconductivityinskyrmionlattices
AT dirkkmorr topologicalsuperconductivityinskyrmionlattices
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