Thermodynamic aspects of the magnetic transitions in the chromium tellurides Heat Capacities of Cr5Te6, Cr3Te4 and Cr2Te3 from 5 to 350°K

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Abstract
Heat capacities of three chromium tellurides representing the compounds Cr5Te6 and Cr3Te4 with monoclinically‐deformed structures, and Cr2Te3 with hexagonal structure were determined over the range from 5 to 350°K. Values of the heat capacities, enthalpy functions, and entropy increments are tabulated at selected temperatures. At 298.15°K the entropy increments (S298.15–Soo) in cal gfw−1 °K−1 are 10.228 for Cr0.4546Te0.5454 [i. e., (Cr5Te6)/11], 10.008 for Cr0.4286Te0.5714 [i. e., (Cr3Te4)/7], and 9.973 for Cr0.4000Te0.6000 [i. e., (Cr2Te3)/5]. Transitional entropy increments of about 1.7, 1.1, and 1.0 cal/(g atom Cr °K) are associated with λ‐type maxima in the heat capacity at 327, 300, and 172°K, in Cr5Te6, Cr3Te4, and Cr2Te3 respectively and are correlated with the magnetic properties.