Growth of Single Crystals of (K_1-xNa_x)NbO₃ by the Self-Flux Method and Characterization of Their Phase Transitions.

ABSTRACT: In this study, single crystals of (K_1-xNa_x)NbO₃ are grown by the self-flux crystal growth method and their phase transitions are studied using a combination of Raman scattering and impedance spectroscopy. X-ray diffraction shows that single crystals have a perovskite structure with monoclinic symmetry. Single crystal X-ray diffraction shows that single crystals have monoclinic symmetry at room temperature with space group P12₁1. Electron probe microanalysis shows that single crystals are Na-rich and A-site deficient. Temperature-controlled Raman scattering shows that low temperature monoclinic-monoclinic, monoclinic-tetragonal and tetragonal-cubic phase transitions take place at -20 °C, 220 °C and 440 °C. Dielectric property measurements show tha

SUBMITTER: Trung DT 

PROVIDER: S-EPMC11396741 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature