Cooperativity and the freezing of molecular motion at the glass transition.

@article{Bauer2013CooperativityAT,
  title={Cooperativity and the freezing of molecular motion at the glass transition.},
  author={T. Bauer and P. Lunkenheimer and A. Loidl},
  journal={Physical review letters},
  year={2013},
  volume={111 22},
  pages={
          225702
        }
}
The slowing down of molecular dynamics when approaching the glass transition generally proceeds much stronger than expected for thermally activated motions. This strange phenomenon can be formally ascribed to a temperature-dependent activation energy E(T). In the present work, via measurements of the third-order nonlinear dielectric susceptibility, we deduce the increase of the number of correlated molecules N(corr) when approaching the glass transition and find a surprisingly simple… Expand
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