<< When it comes to electric charge, there is one overriding theme: opposites attract, and like charges repel. But in a new study, physicists have made the surprising discovery that two spherical like-charged metal nanoparticles with unequal charges can attract one another in a dilute electrolyte solution. The reason, in short, is that the more strongly charged nanoparticle polarizes the metal core of the weakly charged nanoparticle, which alters the interaction between the nanoparticles. >>
<< Our paper elucidates a very counterintuitive behavior which was previously thought to be impossible, >> Yan Levin.
Lisa Zyga. A counterintuitive case in which like charges attract. Phys.org. Jul 2, 2019.
https://m.phys.org/news/2019-07-counterintuitive-case.html
Alexandre P. dos Santos, Yan Levin. Like-Charge Attraction between Metal Nanoparticles in a 1∶ 1 Electrolyte Solution. Phys. Rev. Lett. 122, 248005. June 21, 2019.
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.248005
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