Flokstra, MG, Satchell, N, Kim, J et al. (13 more authors) (2016) Remotely induced magnetism in a normal metal using a superconducting spin-valve. Nature Physics, 12 (1). pp. 57-61. ISSN 1745-2473
Abstract
Superconducting spintronics has emerged in the past decade as a promising new field that seeks to open a new dimension for nanoelectronics by utilizing the internal spin structure of the superconducting Cooper pair as a new degree of freedom1, 2. Its basic building blocks are spin-triplet Cooper pairs with equally aligned spins, which are promoted by proximity of a conventional superconductor to a ferromagnetic material with inhomogeneous macroscopic magnetization3. Using low-energy muon spin-rotation experiments we find an unanticipated effect, in contradiction with the existing theoretical models of superconductivity and ferromagnetism: the appearance of a magnetization in a thin layer of a non-magnetic metal (gold), separated from a ferromagnetic double layer by a 50-nm-thick superconducting layer of Nb. The effect can be controlled either by temperature or by using a magnetic field to control the state of the remote ferromagnetic elements, and may act as a basic building block for a new generation of quantum interference devices based on the spin of a Cooper pair.
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Copyright, Publisher and Additional Information: | © 2016 Macmillan Publishers Limited. All rights reserved. This is an author produced version of a paper published in Nature Physics. Uploaded in accordance with the publisher's self-archiving policy. | ||||
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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: | 04 Mar 2016 12:16 | ||||
Last Modified: | 03 Nov 2017 05:47 | ||||
Published Version: | http://dx.doi.org/10.1038/NPHYS3486 | ||||
Status: | Published | ||||
Publisher: | Nature Publishing Group | ||||
Identification Number: | https://doi.org/10.1038/NPHYS3486 | ||||
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