Nmag

Nmag is a micromagnetic simulation package based on the general purpose multi-physics library Nsim. It is developed by the group of Hans Fangohr and Thomas Fischbacher in the School of Engineering Sciences at the University of Southampton and released under the GNU GPL.

Features in brief:

based on finite elements (suitable for non-cuboidal structures)

problem description in Python, therefore high degree of flexibility

inbuilt mesh post processing tools

efficient data storage (binary compressed) and extraction into vtk files (of course the raw data can be extracted)

arbitrary crystal anisotropy

(pseudo) periodic boundary conditions ("macro geometry approach")

Spin torque transfer (Zhang-Li model for uniform current density)

Supports use of matrix compression library (HLib) for BEM

extensive documentation in html and pdf, including Tutorial

download as source tar ball, (VMWare) virtual machine image (and older versions as debian package, and bootable CD/DVD ISO image)

License and Disclaimer

This software was developed at the University of Southampton, United Kingdom. It is released under the GNU General Public License (GNU GPL) as published by the Free Software Foundation; either version 2, or (at your option) any later version.

Nmag is an experimental system. Neither the University of Southampton nor the authors assume any responsibility whatsoever for its use by other parties, and makes no guarantees, expressed or implied, about its quality, reliability, or any other characteristic.

News

22 December 2009

Update 0.1 beta (6481) released, includes support for Matrix compression.
June 2009

The Institute of Physics Magnetism Group uses the Nmag logo for their group flyer.

Older news items

Mailing list & Contact

Searchable archives of the nmag-users mailing list.

The development team can be contacted at nmag@soton.ac.uk.

Acknowledgement

The development of the nmag tool has been financially supported by the EPSRC, Grant GR/T09156/01, EP/E039944/1 (United Kingdom), the European Community's Seventh Framework Programme (FP7/2007-2013) under Grant Agreement no 233552, and the University of Southampton.

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