Ag:
   -0.0135    -0.0109    -0.0033
   -0.0109    -0.0394    -0.0009
   -0.0033    -0.0009    -0.0121

As:
   -0.0179    -0.0138    -0.0033
   -0.0138    -0.0136    -0.0016
   -0.0033    -0.0016    -0.0252

Ga:
   -0.0173    -0.0128    -0.0030
   -0.0128    -0.0133    -0.0011
   -0.0030    -0.0011    -0.0213

Si:
   -0.0196    -0.0150
   -0.0150    -0.0144