Transmission through correlated CunCoCun heterostructures

Abstract : We propose a method to compute the transmission through correlated heterostructures by combining density functional and many-body dynamical mean field theories. The heart of this combination consists in porting the many-body self-energy from an all electron basis into a pseudopotential localized atomic basis set. Using this combination we study the effects of local electronic interactions and finite temperatures on the transmission across the Cu4CoCu4 metallic heterostructure. It is shown that as the electronic correlations are taken into account via a local but dynamic self-energy, the total transmission at the Fermi level gets reduced (predominantly in the minority-spin channel), whereby the spin polarization of the transmission increases. The latter is due to a more significant d-electron contribution, as compared to the noncorrelated case in which the transport is dominated by s and p electrons.
Type de document :
Article dans une revue
Physical Review B : Condensed matter and materials physics, American Physical Society, 2015, 92 (5), 〈10.1103/PhysRevB.92.054431〉
Liste complète des métadonnées

Littérature citée [66 références]  Voir  Masquer  Télécharger

https://hal.univ-lorraine.fr/hal-01515449
Contributeur : Lcp-A2mc Ul <>
Soumis le : jeudi 11 mai 2017 - 09:36:15
Dernière modification le : jeudi 26 juillet 2018 - 14:38:03
Document(s) archivé(s) le : samedi 12 août 2017 - 12:44:56

Fichier

PhysRevB.92.054431.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

L. Chioncel, C. Morari, A. Ostlin, W. H. Appelt, A. Droghetti, et al.. Transmission through correlated CunCoCun heterostructures. Physical Review B : Condensed matter and materials physics, American Physical Society, 2015, 92 (5), 〈10.1103/PhysRevB.92.054431〉. 〈hal-01515449〉

Partager

Métriques

Consultations de la notice

36

Téléchargements de fichiers

20