[Neutron] SpinW3 released

[Toth Sandor (PSI)]

Dear Colleagues,

I am happy to announce the release of SpinW3, an updated computational tool for simulating spin waves. The most important capabilities of the new version:
* simple Matlab interface to create complex spin Hamiltonians
[cid:ii_iyx2u4160_15a1e3877361165b]
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* linear spin wave solution to arbitrary single-k incommensurate magnetic structures and arbitrary magnetic cells
* symmetry analysis of the spin Hamiltonian
[cid:ii_iyx26uhp6_15a1e27e7d045a7d]
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* visualisation and calculation of magnetic structures with complex Fourier components and multiple propagation vectors (NEW)
[cid:ii_iyx27c0w7_15a1e283ee0b8140]
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* improved optimisation of magnetic structures (local updates, Luttinger-Tisza, simulated annealing and constrained optimization) (NEW)
* improved visualisation of spin Hamiltonians and exporting into vector graphics (eps) (NEW)
[cid:ii_iyx28dk08_15a1e28fcbd9cf39]
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* fitting experimental spin wave spectrum (NEW)
[cid:ii_iyx290cv9_15a1e29716c69e08]
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* integration with Horace (http://horace.isis.rl.ac.uk<http://horace.isis.rl.ac.uk/>)
* performance improvements (compiling some of the critical code into mex files is possible, caching intermediate results and removed all file I/O operation) (NEW)

The new version is tested to run on any Matlab version of R2012a or newer.
To download the code, register on the http://www.psi.ch/spinw webpage. Also you can find updated and new tutorials on the same webpage. Developer version is available on GitHub https://github.com/tsdev/spinw. If you have questions related to the program, ask on the SpinW Forum<https://groups.google.com/forum/#!forum/spinwforum>.


[cid:ii_iyx2gcor0_15a1e2eaab118a26]

Sincerely,
Sándor Tóth
Laboratory for Neutron Scattering and Imaging (LNS)
Paul Scherrer Institute
sandor.toth at psi.ch<mailto:sandor.toth at psi.ch>​



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