Cargando…

Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate

The capability of controlling superconductivity by light is highly desirable for active quantum device applications. Since superconductors rarely exhibit strong photoresponses, and optically sensitive materials are often not superconducting, efficient coupling between these two characters can be ver...

Descripción completa

Detalles Bibliográficos
Autores principales: Yang, Ming, Yan, Chenhui, Ma, Yanjun, Li, Lian, Cen, Cheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325130/
https://www.ncbi.nlm.nih.gov/pubmed/30622274
http://dx.doi.org/10.1038/s41467-018-08024-w
_version_ 1783386082378776576
author Yang, Ming
Yan, Chenhui
Ma, Yanjun
Li, Lian
Cen, Cheng
author_facet Yang, Ming
Yan, Chenhui
Ma, Yanjun
Li, Lian
Cen, Cheng
author_sort Yang, Ming
collection PubMed
description The capability of controlling superconductivity by light is highly desirable for active quantum device applications. Since superconductors rarely exhibit strong photoresponses, and optically sensitive materials are often not superconducting, efficient coupling between these two characters can be very challenging in a single material. Here we show that, in FeSe/SrTiO(3) heterostructures, the superconducting transition temperature in FeSe monolayer can be effectively raised by the interband photoexcitations in the SrTiO(3) substrate. Attributed to a light induced metastable polar distortion uniquely enabled by the FeSe/SrTiO(3) interface, this effect only requires a less than 50 µW cm(−2) continuous-wave light field. The fast optical generation of superconducting zero resistance state is non-volatile but can be rapidly reversed by applying voltage pulses to the back of SrTiO(3) substrate. The capability of switching FeSe repeatedly and reliably between normal and superconducting states demonstrate the great potential of making energy-efficient quantum optoelectronics at designed correlated interfaces.
format Online
Article
Text
id pubmed-6325130
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-63251302019-01-10 Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate Yang, Ming Yan, Chenhui Ma, Yanjun Li, Lian Cen, Cheng Nat Commun Article The capability of controlling superconductivity by light is highly desirable for active quantum device applications. Since superconductors rarely exhibit strong photoresponses, and optically sensitive materials are often not superconducting, efficient coupling between these two characters can be very challenging in a single material. Here we show that, in FeSe/SrTiO(3) heterostructures, the superconducting transition temperature in FeSe monolayer can be effectively raised by the interband photoexcitations in the SrTiO(3) substrate. Attributed to a light induced metastable polar distortion uniquely enabled by the FeSe/SrTiO(3) interface, this effect only requires a less than 50 µW cm(−2) continuous-wave light field. The fast optical generation of superconducting zero resistance state is non-volatile but can be rapidly reversed by applying voltage pulses to the back of SrTiO(3) substrate. The capability of switching FeSe repeatedly and reliably between normal and superconducting states demonstrate the great potential of making energy-efficient quantum optoelectronics at designed correlated interfaces. Nature Publishing Group UK 2019-01-08 /pmc/articles/PMC6325130/ /pubmed/30622274 http://dx.doi.org/10.1038/s41467-018-08024-w Text en © The Author(s) 2019 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
Yang, Ming
Yan, Chenhui
Ma, Yanjun
Li, Lian
Cen, Cheng
Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate
title Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate
title_full Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate
title_fullStr Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate
title_full_unstemmed Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate
title_short Light induced non-volatile switching of superconductivity in single layer FeSe on SrTiO(3) substrate
title_sort light induced non-volatile switching of superconductivity in single layer fese on srtio(3) substrate
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325130/
https://www.ncbi.nlm.nih.gov/pubmed/30622274
http://dx.doi.org/10.1038/s41467-018-08024-w
work_keys_str_mv AT yangming lightinducednonvolatileswitchingofsuperconductivityinsinglelayerfeseonsrtio3substrate
AT yanchenhui lightinducednonvolatileswitchingofsuperconductivityinsinglelayerfeseonsrtio3substrate
AT mayanjun lightinducednonvolatileswitchingofsuperconductivityinsinglelayerfeseonsrtio3substrate
AT lilian lightinducednonvolatileswitchingofsuperconductivityinsinglelayerfeseonsrtio3substrate
AT cencheng lightinducednonvolatileswitchingofsuperconductivityinsinglelayerfeseonsrtio3substrate