Effect of Gd doping and O deficiency on the Curie temperature of EuO

The effect of Gd doping and O deficiency on the electronic structure, exchange interaction, and Curie temperature of EuO in the cubic and tetragonal phases is studied by means of density functional theory. For both defects, the Curie temperature is found to exhibit a distinct maximum as a function o...

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Autores principales: Jutong, Nuttachai, Eckern, Ulrich, Mairoser, Thomas, Schwingenschlögl, Udo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4306962/
https://www.ncbi.nlm.nih.gov/pubmed/25623623
http://dx.doi.org/10.1038/srep08038
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author Jutong, Nuttachai
Eckern, Ulrich
Mairoser, Thomas
Schwingenschlögl, Udo
author_facet Jutong, Nuttachai
Eckern, Ulrich
Mairoser, Thomas
Schwingenschlögl, Udo
author_sort Jutong, Nuttachai
collection PubMed
description The effect of Gd doping and O deficiency on the electronic structure, exchange interaction, and Curie temperature of EuO in the cubic and tetragonal phases is studied by means of density functional theory. For both defects, the Curie temperature is found to exhibit a distinct maximum as a function of the defect concentration. The existence of optimal defect concentrations is explained by the interplay of the on-site, RKKY, and superexchange contributions to the magnetism.
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spelling pubmed-43069622015-02-06 Effect of Gd doping and O deficiency on the Curie temperature of EuO Jutong, Nuttachai Eckern, Ulrich Mairoser, Thomas Schwingenschlögl, Udo Sci Rep Article The effect of Gd doping and O deficiency on the electronic structure, exchange interaction, and Curie temperature of EuO in the cubic and tetragonal phases is studied by means of density functional theory. For both defects, the Curie temperature is found to exhibit a distinct maximum as a function of the defect concentration. The existence of optimal defect concentrations is explained by the interplay of the on-site, RKKY, and superexchange contributions to the magnetism. Nature Publishing Group 2015-01-27 /pmc/articles/PMC4306962/ /pubmed/25623623 http://dx.doi.org/10.1038/srep08038 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 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-nc-nd/4.0/
spellingShingle Article
Jutong, Nuttachai
Eckern, Ulrich
Mairoser, Thomas
Schwingenschlögl, Udo
Effect of Gd doping and O deficiency on the Curie temperature of EuO
title Effect of Gd doping and O deficiency on the Curie temperature of EuO
title_full Effect of Gd doping and O deficiency on the Curie temperature of EuO
title_fullStr Effect of Gd doping and O deficiency on the Curie temperature of EuO
title_full_unstemmed Effect of Gd doping and O deficiency on the Curie temperature of EuO
title_short Effect of Gd doping and O deficiency on the Curie temperature of EuO
title_sort effect of gd doping and o deficiency on the curie temperature of euo
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4306962/
https://www.ncbi.nlm.nih.gov/pubmed/25623623
http://dx.doi.org/10.1038/srep08038
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