Giant negative magnetoresistance in Manganese-substituted Zinc Oxide

We report a large negative magnetoresistance in Manganese-substituted Zinc Oxide thin films. This anomalous effect was found to appear in oxygen-deficient films and to increase with the concentration of Manganese. By combining magnetoresistive measurements with magneto-photoluminescence, we demonstr...

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Detalles Bibliográficos
Autores principales: Wang, X. L., Shao, Q., Zhuravlyova, A., He, M., Yi, Y., Lortz, R., Wang, J. N., Ruotolo, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4363826/
https://www.ncbi.nlm.nih.gov/pubmed/25783664
http://dx.doi.org/10.1038/srep09221
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author Wang, X. L.
Shao, Q.
Zhuravlyova, A.
He, M.
Yi, Y.
Lortz, R.
Wang, J. N.
Ruotolo, A.
author_facet Wang, X. L.
Shao, Q.
Zhuravlyova, A.
He, M.
Yi, Y.
Lortz, R.
Wang, J. N.
Ruotolo, A.
author_sort Wang, X. L.
collection PubMed
description We report a large negative magnetoresistance in Manganese-substituted Zinc Oxide thin films. This anomalous effect was found to appear in oxygen-deficient films and to increase with the concentration of Manganese. By combining magnetoresistive measurements with magneto-photoluminescence, we demonstrate that the effect can be explained as the result of a magnetically induced transition from hopping to band conduction where the activation energy is caused by the sp-d exchange interaction.
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spelling pubmed-43638262015-03-27 Giant negative magnetoresistance in Manganese-substituted Zinc Oxide Wang, X. L. Shao, Q. Zhuravlyova, A. He, M. Yi, Y. Lortz, R. Wang, J. N. Ruotolo, A. Sci Rep Article We report a large negative magnetoresistance in Manganese-substituted Zinc Oxide thin films. This anomalous effect was found to appear in oxygen-deficient films and to increase with the concentration of Manganese. By combining magnetoresistive measurements with magneto-photoluminescence, we demonstrate that the effect can be explained as the result of a magnetically induced transition from hopping to band conduction where the activation energy is caused by the sp-d exchange interaction. Nature Publishing Group 2015-03-18 /pmc/articles/PMC4363826/ /pubmed/25783664 http://dx.doi.org/10.1038/srep09221 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved 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 in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wang, X. L.
Shao, Q.
Zhuravlyova, A.
He, M.
Yi, Y.
Lortz, R.
Wang, J. N.
Ruotolo, A.
Giant negative magnetoresistance in Manganese-substituted Zinc Oxide
title Giant negative magnetoresistance in Manganese-substituted Zinc Oxide
title_full Giant negative magnetoresistance in Manganese-substituted Zinc Oxide
title_fullStr Giant negative magnetoresistance in Manganese-substituted Zinc Oxide
title_full_unstemmed Giant negative magnetoresistance in Manganese-substituted Zinc Oxide
title_short Giant negative magnetoresistance in Manganese-substituted Zinc Oxide
title_sort giant negative magnetoresistance in manganese-substituted zinc oxide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4363826/
https://www.ncbi.nlm.nih.gov/pubmed/25783664
http://dx.doi.org/10.1038/srep09221
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