Fig. 3: BP-like anomaly reproduced by simulation.
From: Boson-peak-like anomaly caused by transverse phonon softening in strain glass

a Vibrational density of states (VDOS) g(ω) as a function of frequency ω for each x in a strain glass model system (Zr100−xNix). b Reduced VDOS g(ω)/ω2 as a function of ω for each x. The boson peak is observed around 1.5 THz for strain glass. c The plot of Cp/T3 vs. T calculated by the VDOS.