A, B co-doped rare-earth manganese oxides bit Hydrothermal Synthesis and Characterization

Title: A, B co-doped rare-earth manganese oxides bit Hydrothermal Synthesis and Characterization
Author: Yang Meiqi
Degree-granting units: Jilin University
Keywords: doped perovskite oxides;; double perovskite oxides;; hydrothermal synthesis;; magnetic
Summary:
This paper studies the hydrothermal system under A, B bit of doped perovskite-type manganese oxide synthesis. Parent compound of lanthanum manganese for the A and B sites Ca ions doped Fe ions series of compounds were synthesized by hydrothermal reaction conditions were systematically explored, confirmed the structure of the product composition. First Magnetic lifter synthesized under hydrothermal conditions in the B-bit double-perovskite-type Fe-doped rare-earth manganese oxide, synthetic methods and reaction conditions for a detailed description.
Introduction In the first chapter, we introduced the structure of perovskite oxides of manganese-based composite basic knowledge and basic theory of doped perovskite and double perovskite study summarizes the current situation; in the second chapter experimental section, we introduce the synthesis under hydrothermal conditions in the La-Ca-Mn-Fe-O series of compounds of the reaction conditions for the realization of the A and B site ions controllable modulation, and a preliminary discussion as doping caused by structural, magnetic and other changes in the nature http://www.999magnet.com/products/131-magnetic-lifter of the situation; experiments in the third chapter, we first obtained by hydrothermal method of double perovskite compounds Ln2FeMnO6 (Ln = Gd, Tb, Dy, Ho) series of samples, and its composition, structure and crystal morphology are described.
Degree Year: 2010