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Anomalous Thermal Expansion in Ising-like Puckered Sheets.

Paul Z Hanakata1, Abigail Plummer1, David R Nelson1

  • 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.

Physical Review Letters
|March 4, 2022
PubMed
Summary

Researchers studied nanoscale metamaterials and found that buckled nodes in 2D membranes behave like Ising spins, exhibiting a phase transition. Unusual thermal expansion near this transition is linked to phonon coupling.

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