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**Calculation of plasma frequency and static dielectric constant (urgent)**

Hello:

Can any one tell me how to measure the plasa frequency of a metal and wherher energy band gap of a metal is equal to the plasma

energy of that material which is equal to (plank constant * plasma angular frequency)?

If energy band gap is equal to plasma energy then how to measure static dielectric constant of that metal from this?

Any reply will be highly appreciated. I need it on urgent basis.

Thanks,

Sami