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arXiv · 2007.03685

Resistivity saturation in an electron-doped cuprate

Nicholas R. Poniatowski·Tarapada Sarkar·Sankar Das Sarma·Richard L. Greene
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Abstract

We report the observation of resistivity saturation in lightly doped ($x\sim 0.10)$ as-grown samples of the electron-doped cuprate La$_{2-x}$Ce$_x$CuO$_4$ (LCCO). The saturation occurs at resistivity values roughly consistent with the phenomenological Mott-Ioffe-Regel criterion once the low effective carrier density of these materials is included in the analysis. These results imply that, at least for light doping, the high-temperature metallic phase of these materials is not necessarily strange and may be understood as simply a low-density metal.

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Nicholas R. Poniatowski, Tarapada Sarkar, Sankar Das Sarma, Richard L. Greene. 2020-07-07. Resistivity saturation in an electron-doped cuprate. https://doi.org/10.1103/physrevb.103.l020501

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