Chakrabarti J, Chakrabarti S, Löwen H
S N Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Calcutta-700091, India.
J Phys Condens Matter. 2006 Feb 15;18(6):L81-7. doi: 10.1088/0953-8984/18/6/L01. Epub 2006 Jan 24.
We calculate the effective interaction between two solute particles in a solvent of Lennard-Jones (LJ) particles in two dimensions where the solvent is in the stable liquid phase near the liquid-gas phase coexistence and the solute-solvent interaction is repulsive. Our grand canonical Monte Carlo (GCMC) simulations show that the effective interaction between two solute particles is attractive for separations between the solute particles up to a range of a few nanometres, beyond which the interaction exhibits a marked repulsion. Such an effective interaction stabilizes clusters of nanometre (nm) sizes.
我们计算了二维空间中,在 Lennard-Jones(LJ)粒子构成的溶剂里,两个溶质粒子之间的有效相互作用。其中,溶剂处于液-气相共存附近的稳定液相,且溶质-溶剂相互作用是排斥的。我们的巨正则蒙特卡罗(GCMC)模拟表明,对于溶质粒子间距离达到几纳米范围内的情况,两个溶质粒子之间的有效相互作用是吸引的,超过这个范围,相互作用则表现出明显的排斥。这种有效相互作用使纳米尺寸的团簇得以稳定。