Nmag

Nmag is a micromagnetic simulation package. It has been developed at the University of Southampton with substantial contributions from Hans Fangohr, Thomas Fischbacher, Matteo Franchin. It is 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 tarball with all libraries, or only the core nmag code (see installation)

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.

The software is provided free and open source. However, there is no resource available to provide installation support, user support, bug fixes or extensions of functionality, and the default expectation should be that the software is provided as is.

News

30 January 2012

Provision of Virtual Machine disk image (VMWare) providing a pre-compiled Nmag 0.2 (read more).
13 January 2012

Release of Nmag 0.2.1
3 January 2012 to 6 January 2012

Anticipated server downtime (due central infrastructure works)
December 2011

Release of Nmag 0.2.0.
June 2009

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

Mailing list & Contact

Searchable archives of the nmag-users mailing list.

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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