Fig. 3: Order parameter Sz from UV/Vis spectra.
From: Depletion of two-level systems in highly stable glasses with different molecular ordering

a Ultraviolet/Visible spectra for glasses grown at different deposition temperatures as indicated in the legend. See Sample preparation in Methods for more details. b Solid black squares (left scale): Sz obtained from UV/Vis spectra of samples grown at temperatures spanning 235 to 333 K. Open black squares: Sz values measured by ellipsometry in refs. 50,55. Solid red squares (right scale): devitrification onset temperature (Ton) measured by calorimetry on TPD glasses grown at different deposition temperatures. Solid stars correspond to samples obtained by cooling from the liquid state. Dashed lines are guides to the eye. The uncertainty in the Sz value is obtained from the standard deviation of three absorption measures per each deposition temperature, after error propagation of the maximum absorption value in the UV-Vis spectra.