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-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.
- Authors:
-
[1]
- Univ. of Illinois, Chicago, IL (United States)
- Univ. of Illinois, Chicago, IL (United States); Technische Univ. Dortmund (Germany)
- Univ. of Melbourne, Parkville, VIC (Australia)
- Publication Date:
- Research Org.:
- Univ. of Illinois, Chicago, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Australian Research Council (ARC)
- OSTI Identifier:
- 1867821
- Grant/Contract Number:
- FG02-05ER46225
- Resource Type:
- Accepted Manuscript
- Journal Name:
- npj Quantum Materials
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 1; Journal ID: ISSN 2397-4648
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Superconducting properties and materials; Topological matter
Citation Formats
Mascot, Eric, Bedow, Jasmin, Graham, Martin, Rachel, Stephan, and Morr, Dirk K. Topological superconductivity in skyrmion lattices. United States: N. p., 2021.
Web. doi:10.1038/s41535-020-00299-x.
Mascot, Eric, Bedow, Jasmin, Graham, Martin, Rachel, Stephan, & Morr, Dirk K. Topological superconductivity in skyrmion lattices. United States. https://doi.org/10.1038/s41535-020-00299-x
Mascot, Eric, Bedow, Jasmin, Graham, Martin, Rachel, Stephan, and Morr, Dirk K. Fri .
"Topological superconductivity in skyrmion lattices". United States. https://doi.org/10.1038/s41535-020-00299-x. https://www.osti.gov/servlets/purl/1867821.
@article{osti_1867821,
title = {Topological superconductivity in skyrmion lattices},
author = {Mascot, Eric and Bedow, Jasmin and Graham, Martin and Rachel, Stephan and Morr, Dirk K.},
abstractNote = {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.},
doi = {10.1038/s41535-020-00299-x},
journal = {npj Quantum Materials},
number = 1,
volume = 6,
place = {United States},
year = {Fri Jan 08 00:00:00 EST 2021},
month = {Fri Jan 08 00:00:00 EST 2021}
}
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