On Thu, Feb 28, 2013 at 11:05 PM, David Roberson <[email protected]> wrote:

How tightly are they actually connected when in a metal crystal?  I can see
> how it might be possible to obtain a very large Q if the nucleus is weakly
> restrained by the electrons.  The spring analogy is a good one and it is
> interesting that you were able to obtain a spring constant equivalent for
> the mass to stretch and relax as it moves up and down, etc.
>

We should not make the connections between lattice points too loose, or our
rigid metal sheet will turn into rubber.  It seems like a single metallic
bond between two metal atoms may allow for some springy movement, but I'm
guessing that the Brillouin zone as a whole will be somewhat rigid.

Eric

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