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The specific heat of vit4 in the temperature range from 2 to 52 K. (a) Specific heat plotted as vs . (b) The specific heat, shown as vs . The solid lines are the results of the fitting specific heat between 2 and 15 K using the expression: . (c) The specific heat is least-squares fitted by the Debye model.
The fitting results (the solid line) of the specific heat of vit4 between 2 and 52 K. The dashed and dotted lines represent contributions from the Debye mode and Einstein mode, respectively; the dash-dotted line is the contribution of electrons.
The derived VDOS of vit4. The peak at about 4.9 meV is boson peak. The inset shows the total VDOS (the solid line), and the VDOS contributed from the Debye (the dashed line) and Einstein (the dotted line) modes, respectively.
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