Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films

Although magnetism and superconductivity hardly coexist in a single material, recent advances in nanotechnology and spintronics have brought to light their interplay in magnetotransport in thin-film heterostructures. Here, we found a periodic oscillation of Nernst voltage with respect to magnetic fi...

Descripción completa

Detalles Bibliográficos
Autores principales: Shiomi, Y., Lustikova, J., Saitoh, E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509755/
https://www.ncbi.nlm.nih.gov/pubmed/28706217
http://dx.doi.org/10.1038/s41598-017-05747-6
_version_ 1783250067107348480
author Shiomi, Y.
Lustikova, J.
Saitoh, E.
author_facet Shiomi, Y.
Lustikova, J.
Saitoh, E.
author_sort Shiomi, Y.
collection PubMed
description Although magnetism and superconductivity hardly coexist in a single material, recent advances in nanotechnology and spintronics have brought to light their interplay in magnetotransport in thin-film heterostructures. Here, we found a periodic oscillation of Nernst voltage with respect to magnetic fields in Pt|LiFe(5)O(8) (Pt|LFO) bilayers grown on a cuprate superconductor YBa(2)Cu(3)O(7−x) (YBCO). At high temperatures above the superconducting transition temperature (T (C)) of YBCO, spin Seebeck voltages originating in Pt|LFO layers are observed. As temperature decreases well below T (C), the spin Seebeck voltage is suppressed and unconventional periodic voltage oscillation as a function of magnetic fields appears; such an oscillation emerging along the Hall direction in the superconducting state has not been observed yet. Dynamics of superconducting vortices pinned by surface precipitates seems responsible for the oscillatory Nernst effect.
format Online
Article
Text
id pubmed-5509755
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-55097552017-07-17 Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films Shiomi, Y. Lustikova, J. Saitoh, E. Sci Rep Article Although magnetism and superconductivity hardly coexist in a single material, recent advances in nanotechnology and spintronics have brought to light their interplay in magnetotransport in thin-film heterostructures. Here, we found a periodic oscillation of Nernst voltage with respect to magnetic fields in Pt|LiFe(5)O(8) (Pt|LFO) bilayers grown on a cuprate superconductor YBa(2)Cu(3)O(7−x) (YBCO). At high temperatures above the superconducting transition temperature (T (C)) of YBCO, spin Seebeck voltages originating in Pt|LFO layers are observed. As temperature decreases well below T (C), the spin Seebeck voltage is suppressed and unconventional periodic voltage oscillation as a function of magnetic fields appears; such an oscillation emerging along the Hall direction in the superconducting state has not been observed yet. Dynamics of superconducting vortices pinned by surface precipitates seems responsible for the oscillatory Nernst effect. Nature Publishing Group UK 2017-07-13 /pmc/articles/PMC5509755/ /pubmed/28706217 http://dx.doi.org/10.1038/s41598-017-05747-6 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Shiomi, Y.
Lustikova, J.
Saitoh, E.
Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films
title Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films
title_full Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films
title_fullStr Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films
title_full_unstemmed Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films
title_short Oscillatory Nernst effect in Pt|ferrite|cuprate-superconductor trilayer films
title_sort oscillatory nernst effect in pt|ferrite|cuprate-superconductor trilayer films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509755/
https://www.ncbi.nlm.nih.gov/pubmed/28706217
http://dx.doi.org/10.1038/s41598-017-05747-6
work_keys_str_mv AT shiomiy oscillatorynernsteffectinptferritecupratesuperconductortrilayerfilms
AT lustikovaj oscillatorynernsteffectinptferritecupratesuperconductortrilayerfilms
AT saitohe oscillatorynernsteffectinptferritecupratesuperconductortrilayerfilms

Ejemplares similares