Specific heat of pbmg 1/3 pnb 2/3 o 3
- 1 January 1981
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 34 (1), 119-121
- https://doi.org/10.1080/00150198108238709
Abstract
Specific heat of PbMg1/3Nb2/3O3 has been measured in the temperature range 140 ÷ 790 K. The Debye function has been fitted to the data, the thermal Debye temperature determined and compared with the elastic one. Besides a specific heat anomaly at the ferroelectric phase transition another broad anomaly at about 673 K has been found. The corresponding values of ΔQ and ΔS have been estimated.Keywords
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