Re: [ESPResSo-users] unit of magnetization

[Markus Gusenbauer]

Hi Rudolf,

I calculate dipolar interactions with particles much larger, that 
temperature would make an effect.

Thanks for all the useful information!

Markus

On 23.06.2014 15:29, Rudolf Weeber wrote:
> Hi,
> On Mon, Jun 23, 2014 at 03:15:56PM +0200, Markus Gusenbauer wrote:
> > Thanks for the fast reply. What happens if I use the DAWAANR
> > interaction?
> Dawaanr is just the same.
> inter magnetic 1 dawaanr
>
> > I can't calculate lamda and alpha.
> Why is that? Are you simulating at zero temperature?
> In that case, you would have compare the dipolar interaction to an other energy 
> scale you are using.
> The energy per particle of two touching dipolar particles in the head-to-tail 
> configuration in Espresso is
> E =m^2 /r^3,
> where m= dipole moment and r=distance between dipoles. This is for the bjerum 
> length =1 case, mentioned before.
> You can calculate this energy for the particles you are studying and then 
> convert it to what ever energy scale you are using in your simulations.
>
> Regards, Rudolf