电介质
电容器
介电常数
放松(心理学)
材料科学
陶瓷电容器
相对介电常数
凝聚态物理
电场
陶瓷
复合材料
光电子学
电压
物理
电气工程
工程类
社会心理学
量子力学
心理学
作者
Justin L. Swantek,Tony D’Esposito,Jacob Brannum,Frank V. Kowalski
摘要
The response of a dielectric to an applied oscillating or step function electric field is widely used to characterize the permittivity of materials from biological samples to integrated circuits. A generic method to measure the permittivity and energy associated with different dielectric relaxation mechanisms as the driving force decreases monotonically with time is illustrated using electrolytic and ceramic capacitors. The free energy available from the dielectric is measured as the driving force changes. The results from this technique yield constraints on microscopic models of dielectric relaxation that differ from those obtained using the standard techniques.
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