VILLAR ARRIBI, P.; BERNARDINI, F.; DE’ MEDICI, L.; TOULEMONDE, Pierre; TENCÉ, Sophie; CANO, Andrés

doi:10.1209/0295-5075/128/47004

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VILLAR ARRIBI, P.
European Synchrotron Radiation Facility [ESRF]

BERNARDINI, F.
Università degli Studi di Cagliari = University of Cagliari [UniCa]

DE’ MEDICI, L.
Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris [ESPCI Paris]

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Article de revue

Ce document a été publié dans

EPL - Europhysics Letters. 2020-01, vol. 128, n° 4, p. 47004

European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing

Résumé en anglais

We address the ferromagnetic tendencies detrimental for superconductivity that are related to the substitution of the pnictogen As atom with Ge or Si, together with additional substitutions in the spacer layers in 122 and 1111 Fe-based superconductors. Intermediate compounds in which these substitutions are realized individually are studied within density functional theory. We thus single out the control of spacer ions as an effective way to handle such a ferromagnetism, and we also show that it is suppressed in YFe2Ge2 under pressure —which then can be expected to enhance its superconductivity.< Réduire

DOI

http://dx.doi.org/10.1209/0295-5075/128/47004

Project ANR

Novel As/Se-free Iron-based Superconductors - ANR-18-CE30-0018

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026