Temperature and pressure dependence of dielectric properties of deuterated trissarcosine calcium chloride
Temperature and pressure dependence of dielectric properties of deuterated trissarcosine calcium chloride
复制标题
氘化三肌氨酸氯化钙介电性能的温度和压力依赖性
DOI：
10.1088/0022-3727/15/8/018
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
S. Funado
中科院分区：
文献类型：
--
作者：
S. Fujimoto;N. Yasuda;S. Funado
氘代三肌氨酸氯化钙（DTSCC）的介电性质（介电常数、介电损耗角正切、自发极化、矫顽场和相变温度）在-200至-60 ° C的温度范围和高达7 kbar的压力范围内呈现。介电常数的突然下降发生在约5千巴的压力，和可能的反铁电相是由压力的应用引起的。DTSCC的压力-温度相图与TSCC相似。发现DTSCC的铁电转变温度（Tcd）与TSCC的铁电转变温度（Tc）几乎相等，与先前报道的铁电转变温度从Tc=-146 ℃向Tcd=-124 ℃的同位素位移相反。
The dielectric properties (permittivity, dielectric loss tangent, spontaneous polarisation, coercive field and phase transition temperatures) of deuterated trissarcosine calcium chloride (DTSCC) are presented in the temperature range -200 to -60 degrees C and in the pressure range up to 7 kbar. An abrupt decrease in the permittivity occurs at a pressure of about 5 kbar, and the probably antiferroelectric phase is induced by the application of pressure. The pressure-temperature phase diagram of DTSCC is similar to that of TSCC. The ferroelectric transition temperature of DTSCC(Tcd) is found to be nearly equal to that of TSCC (Tc), contrary to the isotope shift of the ferroelectric transition temperature from Tc=-146 to Tcd=-124 degrees C reported previously.