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Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions
Efforts have been ongoing to establish superconducting spintronics utilizing ferromagnet/superconductor heterostructures. Previously reported devices are based on spin-singlet superconductors (SSCs), where the spin degree of freedom is lost. Spin-polarized supercurrent induction in ferromagnetic met...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095176/ https://www.ncbi.nlm.nih.gov/pubmed/27782151 http://dx.doi.org/10.1038/ncomms13220 |
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author | Anwar, M. S. Lee, S. R. Ishiguro, R. Sugimoto, Y. Tano, Y. Kang, S. J. Shin, Y. J. Yonezawa, S. Manske, D. Takayanagi, H. Noh, T. W. Maeno, Y. |
author_facet | Anwar, M. S. Lee, S. R. Ishiguro, R. Sugimoto, Y. Tano, Y. Kang, S. J. Shin, Y. J. Yonezawa, S. Manske, D. Takayanagi, H. Noh, T. W. Maeno, Y. |
author_sort | Anwar, M. S. |
collection | PubMed |
description | Efforts have been ongoing to establish superconducting spintronics utilizing ferromagnet/superconductor heterostructures. Previously reported devices are based on spin-singlet superconductors (SSCs), where the spin degree of freedom is lost. Spin-polarized supercurrent induction in ferromagnetic metals (FMs) is achieved even with SSCs, but only with the aid of interfacial complex magnetic structures, which severely affect information imprinted to the electron spin. Use of spin-triplet superconductors (TSCs) with spin-polarizable Cooper pairs potentially overcomes this difficulty and further leads to novel functionalities. Here, we report spin-triplet superconductivity induction into a FM SrRuO(3) from a leading TSC candidate Sr(2)RuO(4), by fabricating microscopic devices using an epitaxial SrRuO(3)/Sr(2)RuO(4) hybrid. The differential conductance, exhibiting Andreev-reflection features with multiple energy scales up to around half tesla, indicates the penetration of superconductivity over a considerable distance of 15 nm across the SrRuO(3) layer without help of interfacial complex magnetism. This demonstrates potential utility of FM/TSC devices for superspintronics. |
format | Online Article Text |
id | pubmed-5095176 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-50951762016-11-18 Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions Anwar, M. S. Lee, S. R. Ishiguro, R. Sugimoto, Y. Tano, Y. Kang, S. J. Shin, Y. J. Yonezawa, S. Manske, D. Takayanagi, H. Noh, T. W. Maeno, Y. Nat Commun Article Efforts have been ongoing to establish superconducting spintronics utilizing ferromagnet/superconductor heterostructures. Previously reported devices are based on spin-singlet superconductors (SSCs), where the spin degree of freedom is lost. Spin-polarized supercurrent induction in ferromagnetic metals (FMs) is achieved even with SSCs, but only with the aid of interfacial complex magnetic structures, which severely affect information imprinted to the electron spin. Use of spin-triplet superconductors (TSCs) with spin-polarizable Cooper pairs potentially overcomes this difficulty and further leads to novel functionalities. Here, we report spin-triplet superconductivity induction into a FM SrRuO(3) from a leading TSC candidate Sr(2)RuO(4), by fabricating microscopic devices using an epitaxial SrRuO(3)/Sr(2)RuO(4) hybrid. The differential conductance, exhibiting Andreev-reflection features with multiple energy scales up to around half tesla, indicates the penetration of superconductivity over a considerable distance of 15 nm across the SrRuO(3) layer without help of interfacial complex magnetism. This demonstrates potential utility of FM/TSC devices for superspintronics. Nature Publishing Group 2016-10-26 /pmc/articles/PMC5095176/ /pubmed/27782151 http://dx.doi.org/10.1038/ncomms13220 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Anwar, M. S. Lee, S. R. Ishiguro, R. Sugimoto, Y. Tano, Y. Kang, S. J. Shin, Y. J. Yonezawa, S. Manske, D. Takayanagi, H. Noh, T. W. Maeno, Y. Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions |
title | Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions |
title_full | Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions |
title_fullStr | Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions |
title_full_unstemmed | Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions |
title_short | Direct penetration of spin-triplet superconductivity into a ferromagnet in Au/SrRuO(3)/Sr(2)RuO(4) junctions |
title_sort | direct penetration of spin-triplet superconductivity into a ferromagnet in au/srruo(3)/sr(2)ruo(4) junctions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095176/ https://www.ncbi.nlm.nih.gov/pubmed/27782151 http://dx.doi.org/10.1038/ncomms13220 |
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