[Pw_forum] Biaxial Strain Silicon

[Cameron Foss]

Sorry please disregard previous message.

Best


On Thu, Aug 14, 2014 at 5:19 PM, Cameron Foss <cjfoss at umass.edu> wrote:

> Hello all,
>
> I am trying to study phonons in silicon under biaxial strain, which occurs
> when you grow thin films of silicon over a germanium(or SiGe) bulk, which
> has a slightly larger lattice constant than silicon, thus stretching the
> silicon out. This type of procedure stretches silicon in the xy directions
> and slightly compresses it in the z direction. This consequently distorts
> the symmetry of the crystal.
>
> I have ran some strained cases; in which I "strain" the crystal by
> changing the lattice vectors in the CELL_PARAMETERS CARD
>
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