Buscar
Mostrando ítems 1-10 de 127
Structural evolution of the double perovskites Sr2B'UO6 (B' = Mn, Fe, Co, Ni, Zn) upon reduction: Magnetic behavior of the uranium cations
(Pergamon-Elsevier Science Ltd, 2011-11)
We describe the preparation of five perovskite oxides obtained upon reduction of Sr2B′UO6 (B′ = Mn, Fe, Co, Ni, Zn) with H2/N2 (5%/95%) at 900 °C during 8 h, and their structural characterization by X-ray powder diffraction ...
Structural evolution of the double perovskites Sr2B′ UO6 (B′ = Mn, Fe, Co, Ni, Zn) upon reduction: Magnetic behavior of the uranium cations
(Pergamon-Elsevier Science Ltd, 2011-11)
We describe the preparation of five perovskite oxides obtained upon reduction of Sr2B′UO6 (B′ = Mn, Fe, Co, Ni, Zn) with H2/N2 (5%/95%) at 900 °C during 8 h, and their structural characterization by X-ray powder diffraction ...
Raman and infrared spectroscopy of Sr2B′UO6 (B′ = Ni; Co) double perovskites
(Elsevier Science, 2010-11)
Temperature dependent normal modes and lattice thermal expansion of Sr 2B′UO6 (B′ = Ni, Co) double perovskites were investigated by Raman/infrared spectroscopies and synchrotron X-ray diffraction, respectively. Monoclinic ...
A POSSIBLE VORTEX-DECOUPLING TRANSITION IN BI2SR2CA2CU3O10
(Elsevier Science BvAmsterdamHolanda, 1995)
Propriedades magnéticas, supercondutoras e de transporte do rutênocuprato RuSr2GdCu2O8
(Universidade Federal de Pernambuco, 2014)
Spectrophotometric and derivative spectrophotometric determination of aluminium with Hydroxynaphthol Blue
(1994)
The reaction of aluminium(III) with Hydroxynaphtol Blue (HNB) in aqueous media at apparent pH 5.5 results in a red complex that is stable for at least 4 hr. Beer's Law is obeyed up to 1.6 μg/ml of aluminium(III) with an ...
Por uma utopia brasileira: a superação da dicotomia estado/mercadofor a brazilian utopy: the overcome of dicotomy state/market
(Universidade Federal de UberlândiaBrasilDireito, 2020)