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

Nuttachai Jutong; Ulrich Eckern; Thomas Mairoser; Udo Schwingenschlögl

doi:10.1038/srep08038

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

Nuttachai Jutong, Ulrich Eckern, Thomas Mairoser, Udo Schwingenschlögl

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Abstract

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.

Original language	English (US)
Journal	Scientific Reports
Volume	5
Issue number	1
DOIs	https://doi.org/10.1038/srep08038
State	Published - Jan 27 2015

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https://repository.kaust.edu.sa/bitstream/10754/346772/1/srep08038.pdf

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title = "Effect of Gd doping and O deficiency on the Curie temperature of EuO",

abstract = "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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AU - Eckern, Ulrich

AU - Mairoser, Thomas

AU - Schwingenschlögl, Udo

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/1/27

Y1 - 2015/1/27

N2 - 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.

AB - 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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JF - Scientific Reports

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

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