High-Pressure/High-Temperature Synthesis of Transition Metal Oxide Perovskites

High-pressure / High-temperature Synthesis of Transition Metal Oxide Perovskites

Perovskite and related Ruddlesden-Popper type transition metal oxides synthesised at high pressures and temperatures during the last decade are reviewed. More than 60 such new materials have been reported since 1995. Important developments have included perovskites with complex cation orderings on A and B sites, multiferroic bismuth-based perovskites, and new manganites showing colossal magneto...

Converged GW quasiparticle energies for transition metal oxide perovskites

The ab initio calculation of quasiparticle (QP) energies is a technically and computationally challenging problem. In condensed matter physics the most widely used approach to determine QP energies is the GW approximation. Although the GW method has been widely applied to many typical semiconductors and insulators, its application to more complex compounds such as transition metal oxide perovsk...

Resonant photoemission of transition metal perovskites

12 We discuss the use of resonant photoemission in the study of rare earth/transition metal perovskites and perovskite-related structures. We illustrate its application to the assignment of the RE and TM valence band density of states in Nd2Ni1−xCuxO4 and REBaCo2O5+δ. In both cases, the relative positions of the 4f and 3d contributions within the valence band density of states (DOS) relative to...

Transition Metal-Doped Oxide Semiconductor Exhibiting Room-Temperature Ferromagnetism

Synthesis and Characterization of Conducting Polymer – Transition Metal Oxide Composite

An attempt towards the realization of magnetism in polymers has been made by inducing transition metal oxide particles into the polymer matrix. Composite of Polyaniline and ferric oxide (50% by weight) was prepared by solid state reaction method. Composite was subjected to X-ray diffraction, UV-Visible spectroscopy and Vibrating sample magnetometry in order to investigate its structural, optica...