非线性柱形涂层复合介质有效的直流-交流电响应  

Effective response to external DC and AC electric field in nonlinear cylindrical coated composite

作　　者：李倩倩[1] 陈小刚[1] 包曙红[1] 郭军明[1] 翟丽丽[1] 

机构地区：[1]内蒙古工业大学理学院,呼和浩特010051

出　　处：《物理学报》2013年第5期375-383,共9页Acta Physica Sinica

基　　金：内蒙古自然科学基金(批准号:2011MS0113);内蒙古人才基金(2010)资助的课题~~

摘　　要：利用摄动展开方法,研究了由圆柱形带涂层杂质随机嵌入基质所形成的非线性复合介质在外加的带有不同频率和振幅的混合电场E0+E1sinωt+E3sin3ωt作用下有效的直流-交流电响应,分别推导了复合介质在杂质核、涂层及基质区域的电势分布,并在低杂质浓度下给出了复合介质有效的非线性响应及它们之间的关系.By using the perturbation method, an effective nonlinear direct current （DC） and alternating current （AC） response of nonlinear composites with cylindrical coated inclusions randomly embedded in a host medium is studied under the action of an external electric field Ea = E0 ＋ E1 sin ωt ＋ E3 sin3ωt with different amplitudes and frequencies. The local potentials of composite at all harmonics are given in the inclusion core, the coated layer and the host regions. All effective nonlinear responses of composites and the rela- tionship between the effective nonlinear responses at all harmonics are also deduced for the cylindrical coated inclusions in a dilute limit.

关 键 词：非线性柱形涂层复合介质 有效的非线性响应 外加交直流电场 

分 类 号：O482.4[理学—固体物理]