30 citations · 45 across the 6 of their papers we have counts for
6 papers
Phase diagram description of the CaCuFeO double perovskite
Ivon R. Buitrago, C. I. Ventura, R. Allub
CaCuFeO exhibits a temperature-induced transition from a ferrimagnetic-insulating phase, in which Fe appears charge disproportionated, as Fe and Fe, to…
Two-Impurity Anderson model in an Antiferromagnetic metal: zero-bandwidth limit
R. Allub
We study the zero-bandwidth limit of the two-impurity Anderson model in an antiferromagnetic (AF) metal. We calculate, for different values of the model parameters, the lowest exci…
The effect of Coulomb interaction at ferromagnetic-paramagnetic metallic perovskite junctions
R. Allub, J. D. Fuhr, M. Avignon +1
We study the effect of Coulomb interactions in transition metal oxides junctions. In this paper we analyze charge transfer at the interface of a three layer ferromagnetic-paramagne…
Phase diagram for Ca_{1-x}Y_xMnO_3 type crystals
H. Aliaga, R. Allub, B. Alascio
We present a simple model to study the electron doped manganese perovskites. The model considers the competition between double exchange mechanism for itinerant electrons and antif…
Effect of double exchange and diagonal disorder on the magnetic and transport properties of La_{1-x}Sr_xMnO_3
R. Allub, B. Alascio
We use a model previously formulated based on the double exchange mechanism and diagonal disorder to calculate magnetization and conductivity for La_{1-x}Sr_xMnO_3 type crystals as…
Effect of disorder on the magnetic and transport properties of La_{1-x}Sr_{x}MnO_{3}
R. Allub, B. Alascio
We study a simplified model of the electronic structure of compounds of the type of LaSrMnO. The model represents each Mn ion by a spin S=1/2, on which an el…