Abstract
The micro-Brillouin scattering spectroscopy (MBSS) has been achieved by the combination of a tandem multipass Fabry-Perot interferometer and an optical microscope to probe the gigahertz to terahertz dynamics focusing on a selected microscopic area or a very small crystal. It gives new insights into the fundamental physics on the variety of vibration, relaxation processes and elementary excitations related to the instability of structural phase transitions, especially ferroic phase transitions. In the mechanism of ferroelectric phase transitions, important problems are still unsolved such as the coexistence/crossover of displacive and order-disorder dynamics, the precursor phenomena of polar regions at nanometer scale, etc. This review highlights the recent progress on the observation and understanding of high frequency dynamics for typical normal and relaxor ferroelectrics.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.