7 citations · 13 across the 6 of their papers we have counts for
5 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…
Magnetic excitations of perovskite rare-earth nickelates: RNiO
Ivon R. Buitrago, Cecilia I. Ventura
The perovskite nickelates RNiO (R: rare-earth) have been studied as potential multiferroic compounds. A certain degree of charge disproportionation in the Ni ions has been conf…
Spin excitations of half-doped bilayer manganites: intermediate phase
Ivon R Buitrago, Cecilia I. Ventura, Luis O. Manuel
The ground state of half-doped manganites involves intricate spin, charge and orbital orderings, which are difficult to discern experimentally. In this work, we resort to the theor…
Quantum magnons of the intermediate phase of half-doped manganite oxides
Ivon R. Buitrago, Cecilia I. Ventura, Luis O. Manuel
At half doping, the ground state of three-dimensional manganite perovskite oxides like RCaMnO, where R is a trivalent ion such as La, Pr, etc, is still unclear. Man…
Spin Excitations in Half-Doped Manganites
Ivon R. Buitrago, C. I. Ventura
We investigate magnetic excitations in half-doped colossal magnetoresistance manganites. In particular, we focus on spin excitations in the CE phase originally proposed by Goodenou…