General expressions for dielectrophoretic force and electrorotational torque derived using the Maxwell stress tensor method
General expressions for dielectrophoretic force and electrorotational torque derived using the Maxwell stress tensor method
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DOI：
10.1016/s0304-3886(97)00126-5
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发表时间：
1997-08-01
影响因子：
1.8
通讯作者：
Gascoyne, PRC
中科院分区：
文献类型：
--
作者：
Wang, XJ;Wang, XB;Gascoyne, PRC
探讨了麦克斯韦应力张量（MST）方法在介电泳（DEP）和电旋光（ROT）研究中的应用。通过对介质粒子表面的麦克斯韦应力张量积分，导出了任意形状电场产生的DEP力和ROT力矩的一般表达式。这是第一次，这样完整的表达式来自第一原则使用MST形式主义。结果进行了比较，并显示出与有效力矩法得到的结果一致。从场的幅值和相位分布的角度讨论了简谐场中DEP力的起源。(C)1997年Elsevier Science B.V.
We explore the application of the Maxwell stress tensor (MST) method to dielectrophoresis (DEP) and electrorotation (ROT) studies. By integrating the Maxwell stress tensor over the surface of a dielectric particle, we derive the general expressions for DEP force and ROT torque generated by electrical fields of arbitrary configuration. This is the first time that such complete expressions are derived from first principles using the MST formalism. The results are compared and shown to be in agreement with those obtained from the effective moment approach. The origin of DEP forces in a harmonic field is discussed in terms of field magnitude and phase distributions. (C) 1997 Elsevier Science B.V.