Response of thermalized ribbons to pulling and bending

Andrej Košmrlj, David R. Nelson

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Motivated by recent free-standing graphene experiments, we show how thermal fluctuations affect the mechanical properties of microscopically thin solid ribbons, which can be many thousand times wider than their atomic thickness. A renormalization group analysis of flexural phonons reveals that elongated ribbons behave like highly anisotropic polymers, where the two dimensional nature of ribbons is reflected in nontrivial power law scalings of the persistence length and effective bending and twisting rigidities with the ribbon width. With a coarse-grained transfer matrix approach, we then examine the nonlinear response of thermalized ribbons to pulling and bending forces over a wide spectrum of temperatures, forces, and ribbon lengths.

Original languageEnglish (US)
Article number125431
JournalPhysical Review B
Volume93
Issue number12
DOIs
StatePublished - Mar 24 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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