Journal of Low Temperature Physics

, Volume 187, Issue 1–2, pp 182–191 | Cite as

Calorimetric Measurements at Low Temperatures in Toluene Glass and Crystal

  • C. Alvarez-Ney
  • J. Labarga
  • M. Moratalla
  • J. M. Castilla
  • M. A. Ramos
Article

Abstract

The specific heat of toluene in glass and crystal states has been measured both at low temperatures down to 1.8 K (using the thermal relaxation method) and in a wide temperature range up to the liquid state (using a quasiadiabatic continuous method). Our measurements therefore extend earlier published data to much lower temperatures, thereby allowing to explore the low-temperature “glassy anomalies” in the case of toluene. Surprisingly, no indication of the existence of tunneling states is found, at least within the temperature range studied. At moderate temperatures, our data either for the glass or for the crystal show good agreement with those found in the literature. Also, we have been able to prepare bulk samples of toluene glass by only doping with 2% mol ethanol instead of with higher impurity doses used by other authors.

Keywords

Specific heat Glass transition Toluene Boson peak Tunneling states 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia CondensadaUniversidad Autónoma de MadridMadridSpain
  2. 2.ETSI Caminos, Canales y PuertosUniversidad Politécnica de MadridMadridSpain
  3. 3.Condensed Matter Physics Center (IFIMAC) and Instituto Nicolás Cabrera (INC)Universidad Autónoma de MadridMadridSpain

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