Phase transitions, critical dielectric phenomena and hysteresis effects in betaine calcium chloride dihydrate
作者： H. J. Rother , J. Albers , A. Klöpperpieper
DOI: 10.1080/00150198408215827
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摘要: Abstract Single crystals of betaine calcium chloride dihydrate ((CH3)3NCH2COO*CaCl2*2H20) are grown from aqueous solutions. The dielectric constant shows several distinct anomalies with the highest values about 20000 near 125 K. Below this temperature complex hysteresis loops observed. Their shape strongly depends on temperature, field and frequency. 51 K only single can be obtained which probably indicate a ferroelectric phase.
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