Related Experiment Video
Updated: Jun 15, 2026

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light
Published on: September 20, 2017
Comment on "Giant electromechanical coupling of relaxor ferroelectrics controlled by polar nanoregion vibrations"
P M Gehring1, Zhijun Xu1,2, C Stock3
1NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6100, USA.
Abstract:
Manley et al. (Science Advances, 16 September 2016, p. e1501814) report the splitting of a transverse acoustic phonon branch below T in the relaxor ferroelectric Pb[(Mg1/3Nb2/3)1- Ti ]O3 with x = 0.30 using neutron scattering methods. Manley et al. argue that this splitting occurs because these phonons hybridize with local, harmonic lattice vibrations associated with polar nanoregions. We show that splitting is absent when the measurement is made using a different neutron wavelength, and we suggest an alternative interpretation.
Related Concept Videos
Mechanisms of Membrane-bending
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
Atomic Nuclei: Nuclear Relaxation Processes
Dielectric Polarization in a Capacitor
Ferromagnetism
Magnetic Damping
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...

