@article {PhysRevLett.119.128001,
	title = {Triple Junction at the Triple Point Resolved on the Individual Particle Level},
	journal = {Phys. Rev. Lett.},
	volume = {119},
	number = {12},
	year = {2017},
	month = {Sep},
	pages = {128001},
	publisher = {American Physical Society},
	abstract = {
	At the triple point of a repulsive screened Coulomb system, a fcc crystal, a bcc crystal, and a fluid phase coexist. At their intersection, these three phases form a liquid groove, the triple junction. Using confocal microscopy, we resolve the triple junction on a single-particle level in a model system of charged PMMA colloids in a nonpolar solvent. The groove is found to be extremely deep and the incommensurate solid-solid interface to be very broad. Thermal fluctuations hence appear to dominate the solid-solid interface. This indicates a very low interfacial energy. The fcc-bcc interfacial energy is quantitatively determined based on Young{\textquoteright}s equation and, indeed, it is only about 1.3 times higher than the fcc-fluid interfacial energy close to the triple point.




},
	doi = {10.1103/PhysRevLett.119.128001},
	url = {https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.128001},
	author = {Chaudhuri, M. and Allahyarov, E. and L{\"o}wen, H. and Egelhaaf, S. U. and Weitz, D. A.}
}
