多价离子引起的电荷反转作为普遍静电现象的直接观测
统计力学
2009-11-10 v2
摘要
我们利用原子力显微镜直接观测到,在加入三价和四价离子后,水中带电表面极性的反转。电荷反转可逆发生时的多价离子体相浓度仅非常微弱地依赖于离子的化学组成、表面结构、尺寸和亲脂性,但主要由其价态决定。这些结果支持了离子间的空间关联是电荷反转驱动机制的理论提议。
引用
@article{arxiv.cond-mat/0406636,
title = {Direct observation of charge inversion by multivalent ions as a universal electrostatic phenomenon},
author = {K. Besteman and M. A. G. Zevenbergen and H. A. Heering and S. G. Lemay},
journal= {arXiv preprint arXiv:cond-mat/0406636},
year = {2009}
}
备注
submitted to PRL, 26-04-2004 Changed the presentation of the theory at the end of the paper. Changed small error in estimate of prefactor ("w" in first version) of equation 2