The protonic E mode frequency in KDP type crystals is calculated employing the RPA method for an extended version of the Blinc-de Gennes model. Below Tc the frequency is found to have a strong temperature dependence.
Publications
The Anomalous Temperature Dependence of the Protonic E- Mode in KDP-Type Crystals
Authors: S. Havlin, E. Litov, H. Sompolinsky
Year of publication: 1975
Journal: Physics Letters A Volume 53, Issue 1, 19 May 1975, Pages 41-42
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