Fig. 6
From: Spin–phonon couplings in transition metal complexes with slow magnetic relaxation
Far-IR reflectance spectra of 1-d 4 . a Reflectance spectra (bottom, 0 T-blue and 16 T-red) and normalized (by the 0 T) reflectance spectra (top) by a single crystal of 1-d 4 , in which the ZFS transition is more visible as it shifts with field at 2, 4, 6, 8, 10, 12, 14 and 16 T. b Contour plot of the normalized reflectance spectra (by the average of all spectra) which shows the ZFS transitions and the magnetic features of spin–phonon coupled peaks. c Normalized reflectance spectra using data in a
