4 papers
Hund's metal crossover and superconductivity in the 111 family of iron-based superconductors
Pablo Villar Arribi, Luca de' Medici
We study LiFeP, LiFeAs and NaFeAs in their paramagnetic metallic phase including dynamical electronic correlations within a density functional theory + slave-spin mean-field framew…
Enhancement of charge instabilities in Hund's metals by the breaking of rotational symmetry
Maria Chatzieleftheriou, Maja Berović, Pablo Villar Arribi +2
We analyze multi-orbital Hubbard models describing Hund's metals, focusing on the ubiquitous occurrence of a charge instability, signalled by a divergent/negative electronic compre…
A Striped Electron Fluid on (111) KTaO
P. Villar Arribi, A. Paramekanti, Michael R. Norman
A recent study has revealed that the low carrier density electron gas (2DEG) induced at the interface of EuO and (111) KTaO exhibits a broken symmetry phase with a strong in-pl…
Magnetic competition in iron-based germanide and silicide superconductors
P. Villar Arribi, F. Bernardini, L. de'Medici +3
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 subs…