Abstract
The electrical resistivity ρ and thermoelectric power S in the charge-density wave (CDW) state of the quasi-one-dimensional conductor NbSe3 under transverse magnetic field were studied systematically. The dramatic variations of the thermoelectric power, as well as the resistivity, with the magnetic field H, were analyzed in a modified two-band model. The results can be interpreted well in terms of the conversion of electron-like charge carrier into CDW condensed state caused by the enhancement of CDW gap. Below 30 K, the variation of the electron-like charge carrier density with magnetic field derived from thermoelectric power data deviates from that derived from magnetoresistance data, which implies that there could be other effects of magnetic field on the dynamics of charge carriers than the effect on the density of charge carrier.
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