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Helical Magnetic Order and the Anomalous Electrical Conductivity PdCrO2

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The effect of a helical magnetic field on the dispersion relation of electrons in one- and two-dimensional systems has been studied. The helical magnetic order in CrO2 dielectric spacers in PdCrO2 creates an unusual spin structure on the Fermi surface in hexagonal palladium layers ensuring electron transport. In this case, umklapp electron–phonon scattering is strongly suppressed, which results in an anomalously high conductivity at low temperatures observed experimentally.

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Notes

  1. In reality, this plane in PdCrO2 is vertical; i.e., it contains the z axis [10]. However, this simplification does not affect the final result.

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Authors and Affiliations

  1. Russian Federal Nuclear Center All-Russian Scientific Research Institute of Experimental Physics, 607188, Sarov, Nizhny Novgorod region, Russia

    Yu. B. Kudasov

  2. Sarov Physical Technical Institute, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 607186, Sarov, Nizhny Novgorod region, Russia

    Yu. B. Kudasov

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Translated by R. Tyapaev

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Kudasov, Y.B. Helical Magnetic Order and the Anomalous Electrical Conductivity PdCrO2 . Jetp Lett. 113, 155–161 (2021). https://doi.org/10.1134/S0021364021030073

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  • DOI: https://doi.org/10.1134/S0021364021030073

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