Supplementary.pdf

This file consists of three figures and three tables. The three figures are (I) DSC thermograms, resistivity and strain curves recorded for MnCoGe0.925Sn0.075 and MnCoGe0.9Sn0.1; (II) Isothermal magnetization curves used for entropy calculations in MnCoGe, MnCoGe0.95Sn0.05 and MnCoGe0.9Sn0.1; (III) Synchrotron XRD profiles at selected temperatures and in limited 2theta range to highlight the structure at room temperature and low temperatures. The three tables give local structural parameters obtained from Mn and Co EXAFS analysis in MnCoGe, MnCoGe0.95Sn0.05 and MnCoGe0.9Sn0.1 respectively.