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Schematic diagram of setup for the THz time-domain magneto-optical ellipsometry.
Waveforms of THz pulses reflected or induced at the sample surface. (a) Dashed and solid curves show waveforms of the -polarized waves with and without the magnetic field, respectively. Dotted curve represents the waveform of the -polarized pulses with . (b) Diagonal and (c) off-diagonal components of complex dielectric tensor. Open and solid circles indicate the real and imaginary parts of the components, respectively. Solid and dashed curves in (b) and (c) show Drude model predictions using , , , and , respectively.
Dependence on carrier density of (a) normalized effective mass and (b) scattering time . Solid circles indicate the values obtained in this study. Results of Faraday rotation measurements in Ref. 15 are displayed as open squares in (a). Solid curve in (a) shows the calculated values of . Open squares in (b) display results of Hall measurements in Ref. 1.
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