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Specific heats of the pyrochlore compounds Eu2Ir2O7 and Lu2Ir2O7

1980; American Institute of Physics; Volume: 72; Issue: 3 Linguagem: Inglês

10.1063/1.439315

1520-9032

K. Blacklock, H. W. White,

Thermodynamic and Structural Properties of Metals and Alloys

The specific heats of the pyrochlore compounds Eu2Ir2O7 and Lu2Ir2O7 were measured below 20 K. The data was found to be described by the expression C=γT+αT3 below 6 K for both compounds. The Debye temperatures were calculated from the T3-term coefficients. The values for γ were found to be 13.0 mJ/mole K2 for Eu2Ir2O7 and 12.5 mJ/mole K2 for Lu2Ir2O7. The ΘD values were 304 and 352 K, respectively.