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Jx: The MFT software

Jx is open source package for calculating spin exchange coupling parameters Jij based on MFT (Magentic force theory).


The Jx is a user-friendly and efficient tool to calculate magnetic interaction in solids and molecules. Key features are as follows:

  1. Without calculating the supercell, it computes short- and long-term interactions.
  2. It is also possible to calculate an orbital-resolved matrix form of magnetic couplings.

See features page for more detailed capabilities.

Usage and example

How to install