  Polarization- and temperature-dependent Raman data along with theoretical
simulations are presented for the Kagome ferromagnet Fe_3Sn_2. Eight out of
nine expected phonon modes were identified. The experimental energies compare
well with those from the simulations. The analysis of the line widths indicates
relatively strong phonon-phonon coupling in the range 0.1 to 1. The
temperature-dependent frequencies of three A_{1g} modes show weak anomalies at
approximately 100 K. In contrast, the linewidths of all phonon modes follow the
conventional exponential broadening up to room temperature except for the
softest A_{1g} mode, whose width exhibits a kink close to 100 K and becomes
nearly constant for T > 100 K. These features are indicative of a spin
reorientation taking place in the temperature range above 100 K which might
arise from spin-phonon coupling. The low-energy part of the electronic
continuum in E_g symmetry depends strongly on temperature. The possible reasons
include particle-hole excitation tracking the resistivity, a spin-dependent gap
or spin fluctuations.
