Fig. 7: Net glassy contribution to the specific heat.
From: Depletion of two-level systems in highly stable glasses with different molecular ordering

Glassy specific-heat excess (subtracting its value for the crystal state) for the three different glasses (see legend) in: a Cp/T 3 representation; b Cp/T vs T 2 representation at the lowest temperatures. Dashed lines show the least squares linear fits performed to determine the corresponding linear coefficients.