When I calculate the Bulk modulus for a metall with the free electron model(adsbygoogle = window.adsbygoogle || []).push({});

I get a value that is twice the experimental value.

I find this strange.

With the free electron model i dont get the contribution from the ion cores and the bound electrons, right?

Do these have a negavite contribution to the bulk modulus.

If so, why?

The magnetic suceptibility has a positive contribution from the free electron paramagnetism and a negative from the diamagnetism. Where the diamagnetism comes from the ion cores and the bound electrons. This i can understand...but how can the bulk modulus have a negative contribution??

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# Bulk modulus for a metal

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