Rogers, M, Walton, A, Flokstra, MG et al. (13 more authors) (2021) Spin-singlet to triplet Cooper pair converter interface. Communications Physics, 4 (1). 69. ISSN 2399-3650
Abstract
Combining magnetic and superconducting functionalities enables lower energy spin transfer and magnetic switching in quantum computing and information storage, owing to the dissipationless nature of quasi-particle mediated supercurrents. Here, we put forward a system where emergent spin-ordering and diffusion of Cooper pairs are achieved at a non-intrinsically magnetic nor superconducting metallo-molecular interface. Electron transport, magnetometry and low-energy muon spin rotation are used to probe time-reversal symmetry breaking in these structures. By comparing the Meissner expulsion in a system including a Cu/C60 spin-converter interface to one without, we observe a paramagnetic contribution that can be explained due to the conversion of spin-singlet Cooper pair states into odd-frequency triplet states. These results demonstrate the potential of metallo-molecular interfaces to achieve singlet to triplet Cooper pair conversion, a capability not present in either metal or molecule separately that could be used in the generation and controlled diffusion of spin polarised dissipationless currents.
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Copyright, Publisher and Additional Information: | © The Author(s) 2021. This is an open access article under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/) | ||||||||
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Institution: | The University of Leeds | ||||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) | ||||||||
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Depositing User: | Symplectic Publications | ||||||||
Date Deposited: | 28 Apr 2021 12:41 | ||||||||
Last Modified: | 25 Jun 2023 22:38 | ||||||||
Status: | Published | ||||||||
Publisher: | Nature Research | ||||||||
Identification Number: | https://doi.org/10.1038/s42005-021-00567-7 |