Critical Dynamics of SrTifor
- 21 February 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 28 (8) , 500-503
- https://doi.org/10.1103/physrevlett.28.500
Abstract
We propose a phenomenological theory for the rotations of the octahedra in perovskites at structural transitions. The EPR linewidth behaves as and the ultrasonic attenuation as close to . Further away a crossover to different power laws is predicted. We find an anomaly in the sound velocity.
Keywords
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