Figure 3
From: Revisiting optical properties of MgB2 with a high-quality sample prepared by a HPCVD method
(a) The optical scattering rate of MgB2 at 50 K and its maximum entropy (ME) fit, obtained from Shulga et al.’s formula18 with the impurity scattering, 1/τ imp = 6.0 meV. (b) Extracted electron-phonon spectral density function, α 2 F(ω), from the ME fit. (c) The optical effective mass to band mass ration, m *(ω)/m b , at temperatures T = 8 K and T = 50 K.
