Phase diagrams of Kondo alloys
ZWICKNAGL, Gertrud
Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig]
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Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig]
ZWICKNAGL, Gertrud
Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig]
< Leer menos
Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig]
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Magnetism and Magnetic Materials. 2021, vol. 520, n° 167405
Elsevier
Resumen en inglés
We analyze the ground state phase diagrams of the Kondo alloy model (KAM) as a function of Kondo coupling (JK), electronic band filling (nc) and magnetic impurity concentration (x). We use DMFT/CPA method to treat the ...Leer más >
We analyze the ground state phase diagrams of the Kondo alloy model (KAM) as a function of Kondo coupling (JK), electronic band filling (nc) and magnetic impurity concentration (x). We use DMFT/CPA method to treat the disorder and the inter-site electronic exchange correlations along with mean-field (MF) approximations to decouple the Kondo interaction. Here, we generalize “Doniach-like” phase diagrams of the periodic Kondo lattice( x = 1) to Kondo alloys. We consider the competition between the paramagnetic Kondo phase (K) and purely ferromagnetic (F) or staggered antiferromagnetic (AF) ordered phases. Our phase diagrams are consistent with various experimentally obtained phase diagrams for alloys like Cex La1-x Pt2Si2, Cex La1-x Ni2Ge2, Cex La1-x Ru2Si2, CexLa1-xPd2Si2, or CexLa1-xCu2Ge2.< Leer menos
Palabras clave en inglés
Kondo alloys
Phase diagrams
Proyecto ANR
Topologie de surfaces de Fermi et émergence de nouveaux états électroniques dans des systèmes fortement corrélés - ANR-16-CE92-0018
Orígen
Importado de HalCentros de investigación