Letter: Comment on the intensities of inelastic neutron scattering spectra

摘要

In a recent paper~1 convincing evidence is given for low temperature symmetry lowering in an exchange-coupled Fe(III) trimer, which shows strict three-fold symmetry at room temperature. By using incoherent, inelastic neutron scattering (IINS) data, the authors were able to demonstrate that the clusters divide into two equally populated sets of distorted trimers between T = 300 and T = 1.5 K. The distortion present in each of these two forms is discussed and reference is made to atomic displacements which may be consistent with the observed exchange interactions. This letter concerns the analysis of the IINS data and aims to improve the agreement between the observed and calculated spectra with respect to the intensities of the spectral features.