Phys. Rev. Lett. 42, 1000–1003 (1979)Dependence of the Dynamic Central Peak on Deuterium Content in Paraelectric KH2PO4Received 20 October 1978; published in the issue dated 9 April 1979 Measurements of the temperature and frequency dependence of the proton and deuteron spin-lattice relaxation time T1 show the presence of a dynamic central peak in paraelectric KH2PO4 which exhibits a dramatic narrowing on deuteration. The observed centralpeak narrowing on deuteration qualitatively agrees with a continued-fraction calculation demonstrating that small dynamic intrinsic clusters may occur in KH2PO4-type crystals above Tc in addition to large static defect-induced clusters observed in light-scattering experiments. © 1979 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.42.1000
DOI:
10.1103/PhysRevLett.42.1000
PACS:
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