Fig. 4: Variation of lattice dynamics with temperature.
From: Ultrasensitive barocaloric material for room-temperature solid-state refrigeration
a Contour plot of neutron-weighted phonon density of states (DOSs) as a function of temperature. b The profiles at 160, 260, and 300 K, respectively. The dashed lines are used for guiding eyes to track the variation of the phonon bands with temperature. ‘A’ and ‘O’ denote the acoustic and optical phonons, respectively.
