Skew band structure and anomalous conductivity of PdCrO₂

2020/06/09 by Yu. B. Kudasov, Kudasov, Yu. B.
Chemistry · Materials Science · #Advanced Physical and Chemical Molecular Interactions #Chemical and Physical Properties of Materials #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Strongly Correlated Electrons (cond-mat.str-el) #X-ray Diffraction in Crystallography

paper · pdf · doi:10.48550/arxiv.2006.05453

openalex publication_date 2020/06/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A model of magnetic interaction of CrO₂ and Pd hexagonal layers in PdCrO₂ is proposed. Since Cr-O-Pd bridges do not provide an interlayer magnetic coupling in case of a 120⁰ 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.

Related

• Topological metal state in helimagnets
• Interaction of in-plane Drude carrier with c-axis phonon in \rm PdCoO₂
• Quantum Oscillations and Magnetic Reconstruction in the Delafossite PdCrO₂
• Unconventional magneto-transport in ultrapure PdCoO2 and PtCoO2
• Impact of electron correlations on the k-resolved electronic structure of PdCrO₂ revealed by Compton scattering