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Table 2 Debye sound velocities at high pressure determined from NIS at room temperature and DFT at 0 K

From: Sound velocities of bridgmanite from density of states determined by nuclear inelastic scattering and first-principles calculations

Sample Phase P V D σ VD ρ Method Remarks
GPa km/s km/s g/cm3
U1219 Majorite 0 5.19 0.27 3.70 NIS Starting material
U1219 Majorite 33 5.45 0.62 4.29 NIS  
U1219 Bridgmanite 0 3.56 0.46 4.31 NIS After decompression
U1219 Bridgmanite 33 5.51 0.59 4.78 NIS  
U1219 Bridgmanite 41 5.80 0.66 4.87 NIS  
U1219 Bridgmanite 49 6.27 0.88 4.97 NIS  
U1219 Bridgmanite 62 5.62 0.55 5.11 NIS  
U1219 Bridgmanite 74 6.79 1.15 5.23 NIS  
U1219 Bridgmanite 89 7.23 1.17 5.37 NIS  
SL16 Bridgmanite 0 3.53 0.05 4.25 NIS Multianvil sample in air
SL18 Bridgmanite 0 3.21 0.12 4.24 NIS After decompression
SL18 Bridgmanite 0 3.97 0.15 4.24 NIS After decompression
SL18 Bridgmanite 17 4.45 0.31 4.50 NIS  
SL18 Bridgmanite 36 5.72 0.38 4.74 NIS  
SL18 Bridgmanite 50 6.84 1.62 4.90 NIS  
SL18 Bridgmanite 62 5.95 0.31 5.03 NIS  
SL18 Bridgmanite 65 6.65 1.16 5.06 NIS  
SL18 Bridgmanite 75 6.47 1.15 5.16 NIS  
S4850 Bridgmanite 0 3.81 0.12 4.43 NIS After decompression
S4850 Bridgmanite 50 6.95 1.26 5.15 NIS Before laser heating
S4850 Bridgmanite 50 6.35 1.39 5.15 NIS After laser heating
S4850 Bridgmanite 53 5.54 0.47 5.19 NIS  
S4850 Bridgmanite 72 6.14 0.69 5.40 NIS  
S4883 Bridgmanite 17 5.03 0.72 4.52 NIS  
S4883 Bridgmanite 55 5.11 0.53 4.99 NIS  
S4883 Bridgmanite 63 5.39 0.88 5.07 NIS  
MgSiO3 Bridgmanite 60 8.21 0.32 5.03 DFT From Mg partial DOS
FeSiO3 Bridgmanite 60 6.73 0.22 6.22 DFT From Fe partial DOS