I-ReaxFF: stand for Intelligent-Reactive Force Field

• I-ReaxFF is a differentiable ReaxFF framework based on TensorFlow, with which we can get the first and high order derivatives of energies, and also can optimize ReaxFF and ReaxFF-nn (Reactive Force Field with Neural Networks) parameters with integrated optimizers in TensorFlow.

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• ffield.json: the parameter file from machine learning
• reaxff_nn.lib the parameter file converted from ffield.json for usage with GULP

Requirement

the following package need to be installed

1. TensorFlow, pip install tensorflow --user or conda install tensorflow
2. Numpy,pip install numpy --user
3. matplotlib, pip install matplotlib --user

Install this package after download this package and run commond in shell python setup install --user. or using new command

pip install .

Alternatively, this package can be install without download the package through pip pip install --user irff.

Refference

1. Feng Guo et.al., Intelligent-ReaxFF: Evaluating the reactive force field parameters with machine learning, Computational Materials Science 172, 109393, 2020.

2. Feng Guo et.al., ReaxFF-MPNN machine learning potential: a combination of reactive force field and message passing neural networks,Physical Chemistry Chemical Physics, 23, 19457-19464, 2021.

3. Feng Guo et.al., ReaxFF-nn: A Reactive Machine Learning Potential in GULP and the Applications in the Thermal Conductivity Calculation of Carbon Nanostructures (Submitted)

Use ReaxFF-nn with LAMMPS:

https://gitee.com/fenggo/ReaxFF-nn_for_lammps

https://github.com/fenggo/ReaxFF-nn_for_lammps