Temperature Dependence of Magnetic Correlations in Fe-based Parents

Key results from time of flight (TOF) neutron scattering measurements of BaFe$_{2}$As$_{2}$ and Fe$_{2}$Te$_{2}$ will be reviewed. These measurements were carried out over temperatures directly above and below T$_{N}$ as well as base temperature measurements deep inside the order state and intermediate temperatures between T$_{N}$ and room temperature where loosely correlated spin fluctuations persist. The large (TOF) data sets provide enough coverage of (Q, $\omega$) space to integrate out the correlated fluctuating moment, dispersion softening, and correlation length of the excitations as a function of temperature. Taken together, these results provide a systematic accounting of how the magnetic excitations in these parents evolve as they transition from long range ordered magnets to paramagnets.