@article {PhysRevE.91.032310,
	title = {Anisotropic elasticity of experimental colloidal Wigner crystals},
	journal = {Phys. Rev. E},
	volume = {91},
	number = {3},
	year = {2015},
	month = {Mar},
	pages = {032310},
	publisher = {American Physical Society},
	abstract = {Colloidal particles interacting via a long-range repulsion can, in contrast to hard-sphere systems, exhibit crystalline ordering at low volume fraction. Here we experimentally investigate the structure and properties of such {\textquotedblleft}colloidal Wigner crystals.{\textquotedblright} We find a body-centered-cubic crystalline phase at volume fractions of\&nbsp;ϕ≳15\%, which exhibits large fluctuations of individual particles from their average positions. We determine the three independent crystalline elastic constants and find that these crystals are very compliant and highly anisotropic.},
	doi = {10.1103/PhysRevE.91.032310},
	url = {http://link.aps.org/doi/10.1103/PhysRevE.91.032310},
	author = {Russell, Emily R. and Spaepen, Frans and Weitz, David A}
}
