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Showing 1–5 of 5 results
Advanced filters: Author: Amirreza Ataei Clear advanced filters

  • The thermal Hall effect of phonons does not yet have a definitive explanation. Now a careful study of doped Sr2IrO4 suggests that the mechanism involves the scattering of phonons by impurities embedded in an antiferromagnetic environment.

    • A. Ataei
    • G. Grissonnanche
    • L. Taillefer
    Research
    Nature Physics
    Volume: 20, P: 585-588

  • Electrons in the non-superconducting state of cuprates can exhibit unusual transport behaviour. Now, analysis of experimental data shows that the magnetoresistance in this state is conventional, but influenced by an anisotropic scattering rate.

    • Amirreza Ataei
    • A. Gourgout
    • Louis Taillefer
    ResearchOpen Access
    Nature Physics
    Volume: 18, P: 1420-1424

  • The thermal Hall effect is a novel probe of neutral excitations in insulators; however, the mechanism behind one type of neutral excitations – phonons – is still unclear. Here the authors observe a planar thermal Hall effect in the Kitaev candidate material Na2Co2TeO6 and proposed that it is generated by phonons.

    • Lu Chen
    • Étienne Lefrançois
    • Louis Taillefer
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-7

  • A long-standing puzzle in the quantum critical behavior of cuprate superconductors has been the observed sub-linear power-law dependence of optical conductivity. Here, the authors present measurements of the optical spectra and resistivity of La2−xSrxCuO4, and develop a theoretical framework that yields a unified description of the optical spectra, resistivity and specific heat.

    • Bastien Michon
    • Christophe Berthod
    • Antoine Georges
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10