diffusive versus propagating soft phonon modes


by bpsbps
Tags: diffusion, distortion, ferroelectric, lattice, transition
bpsbps
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#1
Jun8-09, 03:33 PM
P: 33
Can anyone explain the difference between "diffusive" and "propagating" soft phonon modes?

According to the Lines and Glass text, this is the difference between "displacive" and "order-disorder" transitions in ferroelectric crystals.
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