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# MagTense
MagTense is a framework for magnetostatic and micromagnetic calculations.
## Features
- Interfaces for MATLAB and Python, with the core implemented in Fortran for speed;
- Fully analytical calculation of demagnetization tensor for cylinders, pieces of cylinders, prisms, circular pieces and tetrahedrons;
- Micromagnetic solutions of the Landau-Lifshitz equations, using the analytical demagnetization tensor described above;
- GPU-accelerated code with [CUDA®](https://developer.nvidia.com/cuda-zone) (requires NVIDIA graphics card).
- Uses Intel MKL for the micromagnetic simlations and can also utilize [CVODE](https://computing.llnl.gov/projects/sundials/cvode).
- Tested in Linux and Windows 11+ (macOS not supported at the moment).
## Installation and usage with the Python interface
Installation is recommended via `pip` (requires >=**Python 3.12**):
```
pip install magtense
```
Examples of how to calculate magnetostatic and micromagnetic problems using the Python interface can be found [python/examples/](./python/examples/).
## Installation and usage with the Matlab interface
MagTense is directly useable in Matlab on Windows by downloading the MEX-files in [Releases](https://github.com/cmt-dtu-energy/MagTense/releases). Only Matlab 2023a or greater is required.
Examples of how to calculate magnetostatic and micromagnetic problems using the Matlab interface can be found in [matlab/examples](./matlab/examples).
## Building from source
If you want to build MagTense yourself this is certainly also an option. If you want to compile MagTense on Linux we provide a Makefile, which also works on Windows, where we also provide a Visual Studio project file, [MagTense.sln](MagTense.sln).
For Python you can find detailed instructions for building the Python interface with the Fortran core [here](/python/README.md).
For Matlab MEX-files, we provide a Matlab function called [buildMagTenseMEX.m](matlab/buildMagTenseMEX.m) that works on both OS. You can find more information [here](/matlab/README.md).
## Further documentation
The webpage of the code is available at https://www.magtense.org.
The TechManual on the code is available at https://cmt-dtu-energy.github.io/MagTense.
## Citation
If you use this package in a publication, or simply want to refer to it, please cite the paper below:
```bibtex
@article{BJORK2021168057,
title = {MagTense: A micromagnetic framework using the analytical demagnetization tensor},
journal = {Journal of Magnetism and Magnetic Materials},
volume = {535},
pages = {168057},
year = {2021},
issn = {0304-8853},
doi = {https://doi.org/10.1016/j.jmmm.2021.168057},
url = {https://www.sciencedirect.com/science/article/pii/S0304885321003334},
author = {R. Bj{\o}rk and E. B. Poulsen and K. K. Nielsen and A. R. Insinga},
}
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