Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature

The control of ferromagnetism by light at room temperature is essential for the development of some optical-magnetic coupling devices, data storage and quantum computation techniques. In the present work, we demonstrate that the ferromagnetism of a semiconducting ZnO film on Pt substrate can be cont...

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Autores principales: Xie, Jihao, Qin, Hongwei, Hao, Yanming, Cheng, Bin, Liu, Weikang, Liu, Liang, Ren, Shaoqing, Zhou, Guangjun, Ji, Ziwu, Hu, Jifan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5385869/
https://www.ncbi.nlm.nih.gov/pubmed/28393834
http://dx.doi.org/10.1038/srep45642
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author Xie, Jihao
Qin, Hongwei
Hao, Yanming
Cheng, Bin
Liu, Weikang
Liu, Liang
Ren, Shaoqing
Zhou, Guangjun
Ji, Ziwu
Hu, Jifan
author_facet Xie, Jihao
Qin, Hongwei
Hao, Yanming
Cheng, Bin
Liu, Weikang
Liu, Liang
Ren, Shaoqing
Zhou, Guangjun
Ji, Ziwu
Hu, Jifan
author_sort Xie, Jihao
collection PubMed
description The control of ferromagnetism by light at room temperature is essential for the development of some optical-magnetic coupling devices, data storage and quantum computation techniques. In the present work, we demonstrate that the ferromagnetism of a semiconducting ZnO film on Pt substrate can be controlled by nonpolarized ultraviolet or violet light. The illumination of light with sufficiently high frequency photons could excite photogenerated electron-hole pairs in the semiconducting ZnO film. The amount of oxygen vacancies in the ZnO film and the appearance of built-in electric field due to the heterostructured ZnO/Pt may play important roles in the light-induced changes in the ferromagnetism of the ZnO film.
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spelling pubmed-53858692017-04-12 Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature Xie, Jihao Qin, Hongwei Hao, Yanming Cheng, Bin Liu, Weikang Liu, Liang Ren, Shaoqing Zhou, Guangjun Ji, Ziwu Hu, Jifan Sci Rep Article The control of ferromagnetism by light at room temperature is essential for the development of some optical-magnetic coupling devices, data storage and quantum computation techniques. In the present work, we demonstrate that the ferromagnetism of a semiconducting ZnO film on Pt substrate can be controlled by nonpolarized ultraviolet or violet light. The illumination of light with sufficiently high frequency photons could excite photogenerated electron-hole pairs in the semiconducting ZnO film. The amount of oxygen vacancies in the ZnO film and the appearance of built-in electric field due to the heterostructured ZnO/Pt may play important roles in the light-induced changes in the ferromagnetism of the ZnO film. Nature Publishing Group 2017-04-10 /pmc/articles/PMC5385869/ /pubmed/28393834 http://dx.doi.org/10.1038/srep45642 Text en Copyright © 2017, 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
Xie, Jihao
Qin, Hongwei
Hao, Yanming
Cheng, Bin
Liu, Weikang
Liu, Liang
Ren, Shaoqing
Zhou, Guangjun
Ji, Ziwu
Hu, Jifan
Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature
title Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature
title_full Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature
title_fullStr Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature
title_full_unstemmed Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature
title_short Light Control of Ferromagnetism in ZnO Films on Pt Substrate at Room Temperature
title_sort light control of ferromagnetism in zno films on pt substrate at room temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5385869/
https://www.ncbi.nlm.nih.gov/pubmed/28393834
http://dx.doi.org/10.1038/srep45642
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