Critical dynamics of contact line depinning.
Critical dynamics of contact line depinning.
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DOI：
10.1103/physreve.49.r2532
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发表时间：
1994-01
期刊：
影响因子：
--
通讯作者：
Deniz Ertas;M. Kardar
中科院分区：
文献类型：
--
作者：
Deniz Ertas;M. Kardar
利用泛函重整化群方法研究了接触线脱钉的动力学临界现象。在$D=2-\N $界面尺寸，粗糙度指数为$\zeta=\N/3$的所有订单在微扰理论。因此，对于接触线，$\zeta=1/3$，等于Huse对平衡粗糙度的Imry-Ma估计。动力学指数为z=1- 20/9+O（ε 2）<1$，导致了不寻常的动力学性质。特别地，从强缺陷的接触线脱钉的特征失真长度被预测为最初比时间上线性地更快地增加。一些实验，建议探讨这种动力学。
The depinning of a contact line is studied as a dynamical critical phenomenon by a functional renormalization group technique. In $D=2-\epsilon$ interface dimensions, the roughness exponent is $\zeta=\epsilon/3$ to all orders in perturbation theory. Thus, $\zeta=1/3$ for the contact line, equal to the Imry-Ma estimate of Huse for the equilibrium roughness. The dynamical exponent is $z=1-2\epsilon/9+O(\epsilon^2)<1$, resulting in unusual dynamical properties. In particular, a characteristic distortion length of the contact line depinning from a strong defect is predicted to initially increase faster than linearly in time. Some experiments are suggested to probe such dynamics.