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  • Title: Temperature and pressure dependence of the mode Grüneisen parameters close to the melting point in hexagonal ice.
    Author: Karacali H, Yurtseven H.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2007 Feb; 66(2):487-92. PubMed ID: 16859963.
    Abstract:
    We reexamine the Pippard relations in this study by relating the specific heat CP to the Raman frequency shifts 1/nu (partial differentialnu/partial differentialT) P and the thermal expansivity alphap to the 1/nu (partial differentialnu/partial differentialP) T, when the mode Grüneisen parameter depends on the temperature and pressure close to the melting point in hexagonal ice. From linear relations between them, the values of the slope dP/dT are deduced in this crystal. Our slope values calculated here do not change significantly compared to those obtained when the mode Grüneisen parameter is taken as a constant close to the melting point in hexagonal ice.
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