Unconventional magneto-transport in ultrapure PdCoO2 and PtCoO2

Nabhanila Nandi, Thomas Scaffidi, Pallavi Kushwaha, Seunghyun Khim, Mark E. Barber, Veronika Sunko, Federico Mazzola, Philip D.C. King, Helge Rosner, Philip J.W. Moll, Markus König, Joel E. Moore, Sean Hartnoll, Andrew P. Mackenzie*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The single-band, quasi-two dimensional metals PdCoO2 and PtCoO2 have recently come to prominence because of their extremely long mean free paths, which establish them as some of the most electronically pure materials known, and as potential hosts of previously unobservable regimes of electronic transport. To fully establish their magnetotransport properties, we have studied the magnetoresistance and Hall effect in bulk single crystals to which electrical contacts have been made with high precision using focused ion beam machining. We observe a strong temperature dependence of the Hall resistivity in small applied fields, linked to a large violation of Kohler’s rule in the magnetoresistance. We discuss the extent to which these observations can be accounted for by standard transport theory.

Original languageEnglish
Article number66
Number of pages16
Journalnpj Quantum Materials
Publication statusPublished - 18 Dec 2018


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  • Unconventional magneto-transport in ultrapure PdCoO2 and PtCoO2

    Kushwaha, P. (Contributor), Sunko, V. (Contributor), Barber, M. E. (Contributor), Rosner, H. (Contributor), Khim, S. (Contributor), Mackenzie, A. (Contributor), Nandi, N. (Contributor), Moll, P. J. W. (Contributor), Scaffidi, T. (Contributor), Mazzola, F. (Contributor), King, P. (Contributor), König, M. (Contributor), Moore, J. E. (Contributor) & Hartnoll, S. (Contributor), Max Planck Digital Library, 1 Jan 2022


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