论文信息 - Slowing Down of Fluctuation in KDP Studied by ESR on SeO43

Slowing Down of Fluctuation in KDP Studied by ESR on SeO43

Temperature dependence of ESR spectrum on the SeO 4 3- radical substituted for PO 4 3- in KDP(KH 2 PO 4 ) single crystal has been interpreted by the model that locally ordered regions are formed in the paraelectric phase of the crystal as the temperature approaches T c and the polarization of each region fluctuates with the relaxation time τ. Estimated temperature dependence of the fluctuation rate exhibits the slowing down phenomenon near T c which is represented as τ -1 = A ( T - T c ) m with m =0.99.

K. Hukuda | Y. Nakagawa

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