Specifies the function used to perform the fitting of the volume-energy data. Value can be one of birch_euler, birch_lagrange, birch_murnaghan, mie_gruneisen, murnaghan, pack_evans_james, poirier_tarantola, tait, vinet.
fitted_energies
m_float64(float64) (shape: ['*'])
Array of the fitted energies corresponding to each volume.
bulk_modulus
m_float64(float64)
Calculated value of the bulk modulus by fitting the volume-energy data.
bulk_modulus_derivative
m_float64(float64)
Calculated value of the pressure derivative of the bulk modulus.
equilibrium_volume
m_float64(float64)
Calculated value of the equilibrium volume by fitting the volume-energy data.
equilibrium_energy
m_float64(float64)
Calculated value of the equilibrium energy by fitting the volume-energy data.
rms_error
m_float64(float64)
Root-mean squared value of the error in the fitting.