Thermodynamic Properties of the Quasibinary System Bi2Se3 - Bi2Te3 over a Broad Temperature Range
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We have studied the heat capacity and enthalpies of solid solutions in the quasibinary system Bi2Se3 - Bi2Te3 at low and high temperatures. Based on low-temperature measurements of the heat capacity, we have calculated the values of the enthalpy, entropy, and reduced Gibbs energy of the compounds under standard conditions. We have determined the temperature dependences of the thermodynamic functions for the solid solutions Bi2Se3 - Bi2Te3 (50, 70, and 80 mole% Bi2Te3) in the temperature range 298.15 K - Tmp.
Keywordsthermodynamics calorimetry heat capacity enthalpy entropy reduced Gibbs energy solid solution
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