Melt - quench technique for glass foramtion
Matt W
MattWa... at gmail.com
Wed Nov 23 11:20:20 UTC 2016
Hi,
there is an ANNEALING
<https://manual.cp2k.org/trunk/CP2K_INPUT/MOTION/MD.html#list_ANNEALING> KEYWORD
in the MD section that scales the temperature at every step by that factor.
Thus it is exponential rather than linear ramp.
If possible try to do this with classical forcefields first to get a feel
for the system. Also, perhaps you don't need to ramp the temperature up,
but just run at high T and then quench.
Matt
On Monday, November 21, 2016 at 8:33:08 PM UTC, Aniruddha Dive wrote:
>
> Hi All,
>
> I am pretty new at performing ab - initio MD calculations using CP2K. I
> want to carry out ab - initio MD of a particular glass. In order to form
> glass, I am using melt - quench technique, but I am not aware how do I
> linearly increase the temperature at each timestep. Kindly guide me about
> how if I can linearly increase temperature in CP2K and similarly reduce it
> during the quenching cycle as well?
>
> Regards,
> Aniruddha M Dive
> PhD student , Washington State University
>
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