title: The stabilization of tubular crystals in mixtures of spherical particles.
abstract: Novel crystal structures in binary atomic mixtures arise when the attractive well is wide enough to allow double occupancy by small particles. The resulting crystals consist of ordered packings of self assembled linear structures comprised of a cylindrical tube of large particles enclosing a close packed core of small particles that corresponds to a stacking of overlapping icosahedra. We show that the stability of these structures depends on two essential features of the spherically symmetric pairwise interactions: (i) a radius ratio between 0.414 and 0.588, and (ii) a width w of the attractive well in the interaction between unlike particles that satisfies w > σSSwhere σSSis the diameter of the small particle.
authors.affiliation: School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. peter.harrowell@sydney.edu.au.
authors.forename: Ian
authors.identifier: http://orcid.org/0000-0002-8871-5013
authors.initials: I
authors.lastname: Douglass
authors.affiliation: School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. peter.harrowell@sydney.edu.au.
authors.forename: Helen
authors.initials: H
authors.lastname: Mayger
authors.affiliation: School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. peter.harrowell@sydney.edu.au.
authors.forename: Toby
authors.identifier: http://orcid.org/0000-0002-3348-3622
authors.initials: T
authors.lastname: Hudson
authors.affiliation: School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. peter.harrowell@sydney.edu.au.
authors.forename: Peter
authors.initials: P
authors.lastname: Harrowell