The Pressure-Induced Structural Phase Transition in LaCo0.5Mn0.5O3 Manganite
Abstract
The structural and vibrational properties of LaCo0.5Mn0.5O3cation-disorderedmanganite have been studied using X-ray diffraction and Raman spectroscopy at pressures up to 25 GPa.The application of high pressures above 5 GPa leads to a gradual structural phase transition from an orthorhombic crystal structure with Pnma symmetry to Imma one, accompanied by anomalies in the behaviour of lattice parameters, unit cell volumes, and some Raman modes under pressure.Pressure dependencies of structural parameters and frequencies of Raman modes for the observed phases of the LaCo0.5Mn0.5O3manganese oxide were obtained.
Fields of Study & Subjects
High-pressure geophysics and materials
Magnetic and transport properties of perovskites and related materials
Solid-state spectroscopy and crystallography
Publication details
- Journal / source
- Advanced Physical Research
- Volume
- 8
- Issue
- 1
- Publication date
- 18 February 2026
- Language
- EN