A Change in phonon dispersion with pressure

[elysia]

Hi,

I'm looking into how phonon dispersion changes with pressure analytically and need to know how the atomic spacing in copper changes with pressure in order to model the crystal. I can't find any helpful papers online :(

Any help would be appreciated

thanks

e

 

[Useful nucleus]

For phonon dispersion dependence on pressure, search for the Grueneisen parameters of copper. For lattice variation, search for Birch-Murnaghan equation of state of copper. I'm sure you will find these in literature.