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Showing 1–6 of 6 results
Advanced filters: Author: M. G. Kanatzidis Clear advanced filters

  • Distinguishing the two models that have been proposed to explain stripe-like spin order in the iron-based superconductors is challenging. Avci et al.report an additional spin-ordered phase between this stripe phase and the superconducting state that suggests it originates from weak itinerant magnetism.

    • S. Avci
    • O. Chmaissem
    • R. Osborn
    Research
    Nature Communications
    Volume: 5, P: 1-6

  • A combination of neutron scattering, X-ray scattering and Mössbauer spectroscopy experiments reveal the existence of a collinear double-Q magnetic ordering in an iron arsenide superconductor.

    • J. M. Allred
    • K. M. Taddei
    • R. Osborn
    Research
    Nature Physics
    Volume: 12, P: 493-498

  • Obtaining highly efficient thermoelectric materials relies on a high ZT, and on this value being consistently high over a wide temperature range. Here, the authors demonstrate a phase-separated PbTe-based material that exhibits a ZT of >2 from 673 to 923 K, and a resultantly high average ZT of 1.56 between 300 and 900 K.

    • H. J. Wu
    • L.-D. Zhao
    • J. Q. He
    Research
    Nature Communications
    Volume: 5, P: 1-9

  • Charge density waves are described by a complex order parameter whose amplitude is expected to vanish at the transition temperature. This study shows that the transition in 2H-NbSe2is driven by fluctuations of the phase of the order parameter, with a finite amplitude surviving in the disordered state.

    • U. Chatterjee
    • J. Zhao
    • S. Rosenkranz
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7

  • A new family of superconductors containing layers of iron arsenide has attracted considerable interest because of their high transition temperatures and similarities with the high-Tc copper oxide superconductors. This paper reports inelastic neutron scattering observations of a magnetic resonance below Tc in Ba0.6K0.4Fe2As2, demonstrating that the superconducting energy gap has unconventional symmetry.

    • A. D. Christianson
    • E. A. Goremychkin
    • T. Guidi
    Research
    Nature
    Volume: 456, P: 930-932