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We have measured Raman scattering spectra of single-crystalline FeTe0.6Se0.4(T_c ~ 14.5 K) and its parent compound Fe1.074Te at various temperatures. Inthe parent compound Fe1.074Te, A1g and B1g modes have been observed at 157.5and 202.3 cm-1, respectively, at 5 K. These frequencies qualitatively agreewith the calculated results. Two-magnon excitation has been observed around2300 cm-1 for both compounds. Temperature dependence between the electronicRaman spectra below and above T_c has been observed and 2\Delta and2\Delta/k_BT_C have been estimated as 5.0 meV and 4.0, respectively.

Phonon, Two-Magnon and Electronic Raman Scattering of Fe1+yTe1-xSex