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Phase Changes in Metallic Mn3GaC: Heat Capacity Measurements

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Recent Developments in Condensed Matter Physics

Abstract

Heat capacity measurements (5 K – 350 K) of Mn3GaC and Mn4N are reported. Mn3GaC shows two anomalies at T1 = (171.83 + 0.06) K, of first order character, and at T1 = (243± 1) K, of second order character. The analysis of Cp below 10 K yiels γ (anti-ferromagnetic) = 0.0182 J/mol.K2 and the analysis of the entropy content of the T1 anomaly yields γ (paramagnetic) = 0.049 J/mol.K. Moreover, using Cp(Mn4N) to estimate the lattice contribution to Cp(Mn4GaC), the reliability of the γ (paramagnetic) value is checked.

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© 1981 Plenum Press, New York

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García, J., Navarro, R., Bartolomé, J., González, D., Fruchart, D. (1981). Phase Changes in Metallic Mn3GaC: Heat Capacity Measurements. In: Devreese, J.T., Lemmens, L.F., Van Doren, V.E., Van Royen, J. (eds) Recent Developments in Condensed Matter Physics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1086-0_7

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  • DOI: https://doi.org/10.1007/978-1-4684-1086-0_7

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-1088-4

  • Online ISBN: 978-1-4684-1086-0

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