Кл.слова (ненормированные):
Field-induced phase transition -- Heat capacity -- PMN -- Field cooling -- Field model -- Field-induced phase transition -- Heat capacities -- Heat capacity measurements -- Single crystal wafers -- Temperature range -- Zero-field heating -- Electric fields -- Single crystals -- Specific heat -- Phase transitions
Аннотация: Heat capacity measurements were performed for a single crystal wafer of PMN in the temperature range of 170-250 K applying an electric field E = 3.0 kV/cm along the [111] direction. The heat capacity anomalies related to the phase transition at Tc = 210 K upon zero field heating after field cooling and at Tc = 223 K upon field cooling have been found. The results obtained are discussed together with the data of previous studies in the frame of the spherical random bondrandom field model.
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Доп.точки доступа:
Bondarev, V. S.; Бондарев, Виталий Сергеевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Горев, Михаил Васильевич; International Seminar on Ferroelactic Physics(5 ; 2006 ; Sept. ; 10-13 ; Voronezh)