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- W1616403929 abstract "Magnetoresistance (MR) of the Bi$_{2-x}$Pb$_x$Sr$_2$Co$_2$O$_y$ ($x$=0, 0.3, 0.4) single crystals is investigated systematically. A nonmonotonic variation of the isothermal in-plane and out-of-plane MR with the field is observed. The out-of-plane MR is positive in high temperatures and increases with decreasing $T$, and exhibits a pronounced hump, and changes the sign from positive to negative at a centain temperature. These results strongly suggest that the observed MR consists of two contributions: one emph{negative} and one emph{positive} component. The isothermal MR in high magnetic fields follows a $H^2$ law. While the negative contribution comes from spin scattering of carriers by localized-magnetic-moments based on the Khosla-Fischer model." @default.
- W1616403929 created "2016-06-24" @default.
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- W1616403929 date "2004-12-22" @default.
- W1616403929 modified "2023-09-27" @default.
- W1616403929 title "Anomalous Magnetoresistance in Pb-doped Bi$_2$Sr$_2$Co$_2$O$_y$ Single Crystals" @default.
- W1616403929 doi "https://doi.org/10.48550/arxiv.cond-mat/0412623" @default.
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