Defects and phase transformation in TGSe and DTGSe crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The specific heats of TGSe and DTGSe crystals, pure and gamma-irradiated, were measured. The influence of radiation defects on the phase transition in ferroelectric crystals was studied by calorimetric experiments. The Landau free energy expansion coefficients were measured for various doses of gamma-irradiation (0 < D < 5 MR). The order of the phase transition changed from the first to the second through the tricritical point in DTGSe crystal. (C) 2000 Elsevier Science Ltd. All rights reserved.