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[ESPResSo-users] magnetic field due to magnetic dipoles

From: tomaž mohorič
Subject: [ESPResSo-users] magnetic field due to magnetic dipoles
Date: Fri, 9 Nov 2012 15:51:04 +0000

Dear all,

I am a new user of Espresso and I would have a question for more experienced users. I read the documentation (user's guide) but couldn't find the answer.

I would like to simulate a system of magnetic dipoles. As far as I understood, Espresso is able to calculate the energy of such a system and forces acting on each particle.

In my case I would like to know what is the magnetic field (due to all other dipoles) at the position of each particle. Problem is not so trivial, since the magnetic field due to magnetic dipole decreases as 1/r**3 and one should take into account contribution from all particles (for beginning I assume repeating cells in x and y axis).

Previously I studied simpler systems and I know that magnetic field due to other dipoles may increase magnetic moments by 20%.

My question is: is there any way to obtain the magnetic field due to magnetic dipoles from Espresso?

Thanks for your help and kind regards.

Tomaz Mohoric
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