Wageningen University, Laboratory of Physical Chemistry and Colloid Science, Dreijenplein 6, Wageningen, The Netherlands.
J Chem Phys. 2013 Mar 28;138(12):124103. doi: 10.1063/1.4795607.
We study the curvature dependence of the liquid-liquid (liquid-gas) interface using the well-known mean field lattice model to estimate its rigidity parameters. The gaussian or saddle-splay modulus is found by evaluating the curvature energy of an interface onto which a saddle shape is imposed as this occurs in an Im3m cubic phase. The resulting values are consistent with those found by the classical indirect route, wherein the gaussian bending modulus results from combining the curvature dependences of the interfacial tension in cylindrical and spherical geometries.
我们使用著名的平均场格子模型研究了液体-液体（液体-气体）界面的曲率依赖性，以估算其刚性参数。通过评估施加鞍形形状的界面的曲率能来确定高斯或鞍形扭曲模量，因为这种情况发生在 Im3m 立方相中。所得值与通过经典间接途径找到的值一致，其中高斯弯曲模量是通过组合圆柱和球形几何形状中的界面张力的曲率依赖性得出的。
