Effective ac response of graded colloidal suspensions
文献类型：期刊论文
| 作者 | Wei, EB; Dong, L; Yu, KW |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 99期号:5 |
| 英文摘要 | The alternating current (ac) response has been investigated theoretically in colloidal suspensions consisting of suspended radially inhomogeneous graded particles having complex permittivity profiles under an external ac electric field. The gradation in the colloidal particles is modeled by physically motivated graded profiles as the dielectric function may only vary slightly along the radius, while the conductivity profile may vary rapidly along the radius. More precisely, the dielectric function is assumed to be a constant, while the conductivity has a power-law dependence on the radius variable r, namely, epsilon(i)(r)=A+cr(k)/(i omega). In previous attempts, this model was solved numerically via the differential effective dipole approximation. In this work, we will demonstrate the existence of exact analytical solutions of the local potentials in the graded particles in terms of the hypergeometric functions, and hence the effective ac response is calculated in the dilute limit. Our exact results will be applied to graded biological cell suspensions. Extensions to nonlinear ac response will be discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236002900053 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/32544]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Helsinki Univ Technol, Biophys & Stat Mech Grp, Lab Computat Engn, FIN-02015 Helsinki, Finland 3.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China 4.Chinese Univ Hong Kong, Inst Theoret Phys, Shatin, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, EB,Dong, L,Yu, KW. Effective ac response of graded colloidal suspensions[J]. JOURNAL OF APPLIED PHYSICS,2006,99(5). |
| APA | Wei, EB,Dong, L,&Yu, KW.(2006).Effective ac response of graded colloidal suspensions.JOURNAL OF APPLIED PHYSICS,99(5). |
| MLA | Wei, EB,et al."Effective ac response of graded colloidal suspensions".JOURNAL OF APPLIED PHYSICS 99.5(2006). |
入库方式： OAI收割
来源：海洋研究所
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