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Comment on "Self-assembly of magnetic balls: From chains to tubes"
Thomas Friedrich1, Ingo Rehberg1, Reinhard Richter1
1Experimentalphysik V, Universität Bayreuth, D-95440 Bayreuth, Germany.
Abstract:
The paper states that magnetic balls preferably assemble in a tube geometry if the number of particles exceeds N≥14. We find that for substantially higher particle counts, such as N>1300, a round cluster of densely packed magnetic balls with an fcc lattice can outmatch the described tube structure.

