Artículos de revistas
Normal-state magnetotransport properties of β-FeSe superconductors
Fecha
2016-01Registro en:
Querales Flores, Jose Daniel; Amigó, María Lourdes; Nieva, Gladys Leonor; Ventura, Cecilia Ileana; Normal-state magnetotransport properties of β-FeSe superconductors; Europhysics Letters; Europhysics Letters; 113; 1; 1-2016; 170051-170056
0295-5075
CONICET Digital
CONICET
Autor
Querales Flores, Jose Daniel
Amigó, María Lourdes
Nieva, Gladys Leonor
Ventura, Cecilia Ileana
Resumen
We present β-FeSe magnetotransport data, and describe them theoretically. Using a simplified microscopic model with two correlated effective orbitals, we determined the normal state electrical conductivity and Hall coefficient, using Kubo formalism. With model parameters relevant for Fe-chalcogenides, we describe the observed effect of the structural transition on the ab-plane electrical resistivity, as well as on the magnetoresistance. Temperature-dependent Hall coefficient data were measured at 16 tesla, and their theoretical description improves upon inclusion of moderate electron correlations. We confirm the effect of the structural transition on the electronic structure, finding deformation-induced band splittings comparable to those reported in angle-resolved photoemission.