Implementation of D.R. Heat Capacity Data Processing, and Measurement of 1D Spin Chain Heat Capacity in Cu Elpasolite

We recreate the P.P.M.S. D.R. heat capacity measurement system's data processing chain to produce heat capacity over temperature data, and we investigate the heat capacity of materials which support 1D spin chains when saturated at high magnetic field. The recreation of the data processing method for the D.R. heat capacity measurements allows not only greater transparency in how the experimental data is handled, but also allows different data processing methods and experimental techniques to be used with the P.P.M.S. D.R., such as the long H.C. pulse method. This refactoring required creating ways of reading and using temperature calibration files and raw data files, along with fitting the experimental data to heating curves based on one-tau and two-tau models to extract heat capacity. The Cu Elpasolite material supports 1D spin chains, which are a 1-dimensional quantum system having the characteristic of bosons and fermions having no difference. We measure the low temperature heat capacity at high magnetic field, and discern whether this material supports this kind of excitation characteristic.