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- W1570244677 abstract "We present magnetotransport measurements performed on underdoped ${text{Pr}}_{2ensuremath{-}x}{text{Ce}}_{x}{text{CuO}}_{4}$ at THz frequencies as a function of temperature and doping. A rapidly decreasing Hall mass is observed as the doping is reduced consistent with the formation of small electron Fermi pockets. However, both dc and infrared magnetotransport data strongly deviate from the predictions of transport theory within the relaxation-time approximation based on angular-resolved photoemission data. Furthermore, the Hall mass remains negative with no signature of a change in Fermi-surface topology at or above the N'eel temperature and the characteristic temperature at which the optical gap fully closes. In the paramagnetic state, this behavior of the Hall mass may be qualitatively understood as arising from current vertex corrections to the Hall conductivity due to magnetic fluctuations as observed in overdoped ${text{Pr}}_{2ensuremath{-}x}{text{Ce}}_{x}{text{CuO}}_{4}$ [G. S. Jenkins et al., arXiv:0901.1701 (unpublished)]." @default.
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- W1570244677 date "2009-06-22" @default.
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- W1570244677 title "Terahertz magnetotransport measurements in underdopedPr2−xCexCuO4and comparison with angle-resolved photoemission" @default.
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- W1570244677 doi "https://doi.org/10.1103/physrevb.79.224525" @default.
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