[Pw_forum] polarizability of metals using ph.x

[anne etindele]

Dear all

I am trying to determine the frequency dependent polarisability of metals like 

Pt and Al using ph.x code. Here is the input I made for the case of Pt:

phonons of pt at Gamma
 &inputph
  tr2_ph=1.0d-15,
  trans=.false.,
  fpol=.true.,
  amass(1)=195.078,
  prefix='Pt',
  outdir='$TMP_DIR'
  fildyn='pt.dynG',
 /
0.0 0.0 0.0

FREQUENCIES
 4
 0.5d0
 1.0d0
 1.5d0
 5.0d0

In the output file I don't have any value of polarizability. Do I need
to modify or to add another parameter?

 
Anne Justine ETINDELE
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