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Showing 1–3 of 3 results
Advanced filters: Author: Davide Sangalli Clear advanced filters

  • It has long been anticipated theoretically that semiconductors with small band gaps may form a correlated exciton insulator phase, but it has been difficult to find material realisations. Here, the authors predict numerically that zero-gap armchair carbon nanotubes could be exciton insulators.

    • Daniele Varsano
    • Sandro Sorella
    • Massimo Rontani
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-9

  • In FeRh, it is possible to optically drive a phase transition between ferromagnetic (FM) and anti-ferromagnetic (AFM) ordering. Here, using a combination of photoelectron spectroscopy and ab-initio calculations, the authors demonstrate the existence of a transient intermediate phase, explaining the delayed appearance of the FM phase.

    • Federico Pressacco
    • Davide Sangalli
    • Fausto Sirotti
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8