The Chilton Group

Magnetism, Spectroscopy, Theory

About CC-FIT2

CC-FIT2 is a program for fitting AC and DC magnetisation data to obtain magnetic relaxation rates, and then to model the field- and/or temperature-dependence of these rates with parameterised models of spin-phonon coupling mechanisms.

CC-FIT2 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. CC-FIT2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with CC-FIT2. If not, see

We request that any results obtained through the use of CC-FIT2 are accompanied by the following references:

  • D. Reta and N. F. Chilton, Phys. Chem. Chem. Phys., 2019, 21, 23567.
  • W. J. A. Blackmore, G. K. Gransbury, P. Evans, J. G. C. Kragskow, D. P. Mills and N. F. Chilton, Phys. Chem. Chem. Phys., 2023, doi: 10.1039/D3CP01278F.

CC-FIT2 is a Python program that is best installed using pip: $ pip install ccfit2

Updates are made on the Gitlab repository and are automatically pushed to update the PyPi repository, and therefore updates are available using: $ pip install ccfit2 --upgrade