The database on structural phase transitions is presented in the simple and easy accessible
form of table. The symmetry changes and temperature for 3446 phase transitions and the …

In the past decade intense research activity in the area of the so-called Ruddlesden-Poper
phases, especially the nickelates, has been motivated by the similarity of their structure and …

An overall survey of the structural and magnetic features of the La 2 NiO 4+ delta system is
presented as a result of neutron diffraction experiments. The stoichiometric compound …

The compound PrNiO 3 has been prepared for the first time. Using only moderate oxygen
pressure, PrNiO 3, NdNiO 3, and SmNiO 3 were made and found to crystallize in the GdFeO …

Synchrotron x-ray and neutron-diffraction measurements demonstrate that Nd 3+
substitution at the La 3+ site in both metallic and insulating La 2− x Sr x CuO 4 induces low …

Neutron-diffraction experiments and polarization analysis techniques reveal that the metal-
insulator transition in the orthorhombic perovskites PrNiO 3 and NdNiO 3 is accompanied by …

Lattice dynamics is increasingly acknowledged as playing an important role in the ionic
transport mechanisms of many oxide ion conductors. In particular, specific structural …

Featured Application Extended experimental data obtained in the framework of this study on
the structure, high-temperature behavior, oxygen diffusion, and electrode performance of the …

The influence of the lattice strain on the kinetics of the oxygen reduction reaction (ORR) was
investigated at the surface of Nd2NiO4+ δ (NNO). Nanoscale dense NNO thin films with …

Nonstoichiometric Nd2NiO4+ δ shows oxygen ion mobility already at room temperature and
as such is a promising material in the field of solid state ionic conductors. The present work …