Structures and phase transitions in perovskites–a group-theoretical approach

CJ Howard, HT Stokes - Acta Crystallographica Section A …, 2005 - journals.iucr.org
Applications of computer-based group-theoretical methods to perovskite crystallography are
reviewed. Such methods furnish a systematic account of the effects on the high-symmetry …

Ab initio calculations of SrTiO3, BaTiO3, PbTiO3, CaTiO3, SrZrO3, PbZrO3 and BaZrO3 (001), (011) and (111) surfaces as well as F centers, polarons, KTN …

RI Eglitis - International journal of modern physics B, 2014 - World Scientific
In this paper, the review of recent results of calculations of surface relaxations, energetics,
and bonding properties for ABO 3 perovskite (001),(011) and (111) surfaces using mostly a …

Layered organic–inorganic hybrid perovskites: structure, optical properties, film preparation, patterning and templating engineering

Z Cheng, J Lin - CrystEngComm, 2010 - pubs.rsc.org
Organic–inorganic perovskites are a class of interesting compound in the perovskite family
due to their unique structures of alternately stacking sheets of organic and inorganic …

Oxygen Diffusion in SrTiO3 and Related Perovskite Oxides

RA De Souza - Advanced Functional Materials, 2015 - Wiley Online Library
The transport of oxygen ions plays a central role in determining the performance or the
degradation of perovskite‐type oxides in applications as diverse as ceramic capacitors, solid …

Prediction of the crystal structures of perovskites using the software program SPuDS

MW Lufaso, PM Woodward - Acta Crystallographica Section B …, 2001 - scripts.iucr.org
The software program SPuDS has been developed to predict the crystal structures of
perovskites, including those distorted by tilting of the octahedra. The user inputs the …

Characterization of the Structural, Optical, and Dielectric Properties of Oxynitride Perovskites AMO2N (A = Ba, Sr, Ca; M = Ta, Nb)

YI Kim, PM Woodward, KZ Baba-Kishi… - Chemistry of …, 2004 - ACS Publications
The syntheses, crystal structures, electrical properties, and optical absorbance spectra of six
perovskite oxynitrides, AMO2N (A= Ba, Sr, Ca; M= Ta, Nb) have been investigated. The …

Anharmonicity measure for materials

F Knoop, TAR Purcell, M Scheffler, C Carbogno - Physical Review Materials, 2020 - APS
Theoretical frameworks used to qualitatively and quantitatively describe nuclear dynamics in
solids are often based on the harmonic approximation. However, this approximation is …

Neutron powder diffraction study of rhombohedral rare-earth aluminates and the rhombohedral to cubic phase transition

CJ Howard, BJ Kennedy… - Journal of Physics …, 2000 - iopscience.iop.org
Neutron powder diffraction has been used to examine the structural changes of the rare-
earth aluminates LaAlO 3, PrAlO 3 and NdAlO 3 over a wide range of temperatures. At room …

Group-theoretical analysis of octahedral tilting in ferroelectric perovskites

HT Stokes, EH Kisi, DM Hatch… - … Section B: Structural …, 2002 - journals.iucr.org
Group-theoretical methods are used to analyze perovskite structures where both
ferroelectric cation displacements and simple tilting of octahedral units are present. This …

Space group and crystal structure of the perovskite CaTiO3 from 296 to 1720 K

R Ali, M Yashima - Journal of Solid State Chemistry, 2005 - Elsevier
The structural phase transitions of the calcium titanate perovskite CaTiO3 were investigated
by the Rietveld analysis of high-temperature neutron and X-ray powder diffraction data in the …