Shape Entropy of a Reconfigurable Ising Surface

Benjamin N. Katz, Lev Krainov, Vincent Crespi

Research output: Contribution to journalArticlepeer-review


Disclinations in a 2D sheet create regions of Gaussian curvature whose inversion produces a reconfigurable surface with many distinct metastable shapes, as shown by molecular dynamics of a disclinated graphene monolayer. This material has a near-Gaussian "density of shapes"and an effectively antiferromagnetic interaction between adjacent cones. A∼10 nm patch has hundreds of distinct metastable shapes with tunable stability and topography on the size scale of biomolecules. As every conical disclination provides an Ising-like degree of freedom, we call this technique "Isigami."

Original languageEnglish (US)
Article number096102
JournalPhysical review letters
Issue number9
StatePublished - Aug 26 2022

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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