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CCFIT2 is a program for fitting AC and DC magnetisation data

Project description


ccfit2 is a package for working with magnetometry data, specifically those from AC susceptibility, DC decay, and DC Waveform measurements.

Although the main use of ccfit2 is to extract and later fit temperature/field dependent relaxation rate data from these experiments, the modular nature of ccfit2 means that the user is free to include any of ccfit2's functionality in their own work.

Documentation and Installation

To get started, head to the online documentation for ccfit2 here.


Install in editable mode by running

pip install -e .

in the repository HEAD.


We request that any data processed with ccfit2 is accompanied by both of the following citations

  1. William J. A. Blackmore, Gemma K. Gransbury, Peter Evans, Jon G. C. Kragskow, David P. Mills, and Nicholas F. Chilton. Characterisation of magnetic relaxation on extremely long timescales. Phys. Chem. Chem. Phys., 2023, 25, 16735-16744. URL:

  2. Daniel Reta and Nicholas F. Chilton. Uncertainty estimates for magnetic relaxation times and magnetic relaxation parameters. Phys. Chem. Chem. Phys., 2019, 21, 23567-23575. URL:

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