Generation of low-symmetry perovskite structures forab initiocomputation

Area of Science:

• Materials Science
• Solid State Physics
• Computational Chemistry

Background:

• Ferroelectricity in perovskites originates from ion displacements.
• Ab initio computations are crucial for studying perovskite properties.
• Oxygen octahedron tilting is another key structural distortion in perovskites.

Purpose of the Study:

• To design and implement a computer program for generating distorted perovskite structures.
• To facilitate ab initio computations for perovskite materials.
• To aid in understanding complex perovskite structural phases.

Main Methods:

• Development of a novel computer program.
• Utilizing ab initio computational methods.
• Generation of distorted perovskite structures, including ion displacements and oxygen octahedron tilting.

Main Results:

• A user-friendly program for generating complex perovskite structures.
• Streamlined preparation of input files for ab initio calculations.
• Facilitation of the study of interplay between ion displacements and octahedral tilting.

Conclusions:

• The developed program simplifies the creation of distorted perovskite structures.
• This facilitates in-depth ab initio studies of ferroelectric perovskites.
• The tool aids researchers in exploring diverse structural phases and their properties.