Ferroelastic domains and phase transitions in organic–inorganic hybrid perovskite CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>
Maryam Bari, Alexei A. Bokov, Zuo‐Guang Ye
Abstract
Polarized light microscopy reveals twin domains and symmetry of the phases in CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> crystal; domain structure remains unresponsive to electric field but changes under external stress, confirming ferroelasticity while ruling out ferroelectricity.
Topics & Concepts
FerroelasticityFerroelectricityPerovskite (structure)Materials scienceCrystallographyPhase (matter)Domain (mathematical analysis)Phase transitionElectric fieldPolarized light microscopyCrystal structureCondensed matter physicsCrystal (programming language)MineralogyOpticsChemistryPhysicsDielectricOptoelectronicsComputer scienceMathematicsMathematical analysisOrganic chemistryProgramming languageQuantum mechanicsPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyAcoustic Wave Resonator Technologies