Glassy Anomalies in the Low-Temperature Thermal Properties of a Minimally Disordered Crystalline Solid.

  title={Glassy Anomalies in the Low-Temperature Thermal Properties of a Minimally Disordered Crystalline Solid.},
  author={Jonathan F. Gebbia and Miguel A Ramos and Daria Szewczyk and A. Jeżowski and A. I. Krivchikov and Yu. V. Horbatenko and Tatiana Guidi and F. J. Bermejo and Josep Ll Tamarit},
  journal={Physical review letters},
  volume={119 21},
The low-temperature thermal and transport properties of an unusual kind of crystal exhibiting minimal molecular positional and tilting disorder have been measured. The material, namely, low-dimensional, highly anisotropic pentachloronitrobenzene has a layered structure of rhombohedral parallel planes in which the molecules execute large-amplitude in-plane as well as concurrent out-of-plane librational motions. Our study reveals that low-temperature glassy anomalies can be found in a system with… 

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