Skew band structure and anomalous conductivity of PdCrO$_2$

Yu. B. Kudasov

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arXiv · 2006.05453

Skew band structure and anomalous conductivity of PdCrO$_2$

Yu. B. Kudasov

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Abstract

A model of magnetic interaction of CrO$_2$ and Pd hexagonal layers in PdCrO$_2$ is proposed. Since Cr-O-Pd bridges do not provide an interlayer magnetic coupling in case of a 120$^0$ magnetic ordering, a direct exchange interaction between magnetic chromium ions and conductive palladium layers is assumed. It is shown that this interaction leads to a novel state of itinerant electrons (skew bands). It is characterized by abnormally high conductivity at low temperatures due to strong suppression of umklapp electron-phonon scattering.

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Yu. B. Kudasov. 2020-06-09. Skew band structure and anomalous conductivity of PdCrO$_2$. https://arxiv.org/abs/2006.05453

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