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- W1480617605 abstract "We report in-plane resistivity and Hall-effect studies on the same ${mathrm{Nd}}_{1.85}$${mathrm{Ce}}_{0.15}$${mathrm{CuO}}_{4+mathrm{ensuremath{delta}}}$ crystals before and after reduction. A dramatic change in both magnitude and temperature dependence of ensuremath{rho} and ${mathit{R}}_{mathit{H}}$ has been observed. In particular, the magntiude of ${mathit{R}}_{mathit{H}}$ at Tensuremath{ge}100 K drops about a factor of 2--3 after the reducing process but its T dependence is not affected, suggesting a large increase of mobile-carrier density. These observations are consistent with the proposal that excess oxygen exists in a prepared sample, which may cause localization of the electrons provided by Ce doping. The anomalous T dependence of ${mathit{R}}_{mathit{H}}$ in this system is also discussed within several proposed models." @default.
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- W1480617605 date "1993-04-01" @default.
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- W1480617605 title "Transport properties ofNd1.85Ce0.15CuO4+δcrystals before and after reduction" @default.
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- W1480617605 doi "https://doi.org/10.1103/physrevb.47.8151" @default.
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