I've been trying to run some phonon dispersion calculations and I cannot get the matdyn.x routine to work. I've tried several different tutorials, but none work. Currently I'm using quantun espresso 6.6 (since that is the oldest version available), because the newest version wouldn't allow even the ph.in codes, running on Ubuntu from the windows subsystem for linux.

Here is my input file named "dynmat.in"

fildyn = 'dyn',

asr = 'simple',

lperm = .true.,

q(1)=1.0,

q(2)=0.0,

q(3)=0.0,

filout = 'phonon_freq.out'

/

Also, my output files from the ph calculation are named "dyn#", where #={0,1,2,3,4,5,6,7}.

I keep getting the error:

Error in routine matdyn (5010):

reading input namelist

Just in case, here are all the other codes:

scf.in >>

&control

calculation = 'scf'

prefix = 'gaas',

pseudo_dir = './',

outdir = './'

/

&system

ibrav = 2,

celldm(1) = 10.4749,

nat = 2,

ntyp = 2,

ecutwfc = 40.0,

/

&electrons

/

ATOMIC_SPECIES

Ga 1.0 Ga.pz-bhs.UPF

As 1.0 As.pz-bhs.UPF

ATOMIC_POSITIONS crystal

Ga 0.00 0.00 0.00

As 0.25 0.25 0.25

K_POINTS automatic

6 6 6 1 1 1

ph.in >>

phonons of GaAs

&inputph

prefix = 'gaas',

amass(1) = 69.723,

amass(2) = 74.9216,

epsil = .true.,

zeu = .true.,

fildyn = 'dyn',

tr2_ph = 1.0d-14,

ldisp = .true.,

nq1 = 4,

nq2 = 4,

nq3 = 4,

/

q2r.in >>

&input

fildyn = 'dyn',

flfrc = 'gaas.fc'

/