Crystal growth, resistivity and Hall effect of the delafossite metal PtCoO$_2$

Pallavi Kushwaha; Philip J. W. Moll; Nabhanila Nandi; Andrew P. Mackenzie

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arXiv · 1411.6162

Crystal growth, resistivity and Hall effect of the delafossite metal PtCoO$_2$

Pallavi Kushwaha·Philip J. W. Moll·Nabhanila Nandi·Andrew P. Mackenzie

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Abstract

We report single crystal growth of the delafossite oxide PtCoO$_2$, and basic transport measurements on single crystals etched to well-defined geometries using focused ion beam techniques. The room temperature resistivity is 2.1 $\mu\Omega$ cm, and the Hall coefficient is consistent with the existence of one free electron per Pt. Although the residual resistivity ratio is greater than fifty, a slight upturn of resistivity is seen below 15 K. The angle dependence of the in-plane magnetoresistance is also reported.

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Pallavi Kushwaha, Philip J. W. Moll, Nabhanila Nandi, Andrew P. Mackenzie. 2014-11-22. Crystal growth, resistivity and Hall effect of the delafossite metal PtCoO$_2$. https://arxiv.org/abs/1411.6162

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