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	This package contains a fix phonon command that calculates dynamical
	matrices, which can then be used to compute phonon dispersion
	relations, directly from molecular dynamics simulations.

	See the doc page for the fix phonon command for detailed usage
	instructions.

	Use of this package requires building LAMMPS with FFT suppport, as
	described in doc/Section_start.html.

	There are example scripts for using this package in
	examples/USER/phonon.

	There is an auxiliary post-processing tool in tools/phonon that will
	compute phonon frequencies and dispersion relations from the dynamical
	matrices output by this command.

	There is also an alternative code, dump2phonon, available which enables
	one to use the functions of fix-phonon by reading in atom-style dump
	files of lammps (which can be converted from the trajectories of any
	other MD code):
	https://github.com/lingtikong/dump2phonon

	The person who created this package is Ling-Ti Kong (konglt at
	sjtu.edu.cn) at Shanghai Jiao Tong University. Contact him directly
	if you have questions.