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Showing 1–6 of 6 results
Advanced filters: Author: Honglie Ning Clear advanced filters

  • It is generally assumed that modulating magnetic properties via linear excitations of Raman-active phonons is forbidden in inversion symmetric magnets. Here, Luo, Ning, Ilyas, von Hoegen, and coauthors demonstrate a linear excitation of Raman-active lattice vibrations, via magnon-polaron excitation.

    • Tianchuang Luo
    • Honglie Ning
    • Nuh Gedik
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-9

  • The interplay between charge density wave states in emerging kagome superconductors is a topic of ongoing debate. Here, the authors unveil the out-of-equilibrium competition between two coexisting charge density waves in CsV3Sb5 by harnessing time-resolved X-ray diffraction.

    • Honglie Ning
    • Kyoung Hun Oh
    • Nuh Gedik
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • Hole and particle-like quasiparticles of a Mott insulator can pair into excitonic bound states. Now, time-resolved measurements of Sr2IrO4 show signs of an excitonic fluid forming from a photo-excited population of quasiparticles.

    • Omar Mehio
    • Xinwei Li
    • David Hsieh
    Research
    Nature Physics
    Volume: 19, P: 1876-1882

  • Ultrafast laser excitation can generate metastable states in quantum materials, with no counterpart in equilibrium. Here the authors demonstrate a transient quadrupolar ordered state in Ca2RuO4 single crystals via excitation of a phonon mode coupled to the order parameter.

    • Honglie Ning
    • Omar Mehio
    • David Hsieh
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Searches for metastable states with properties not found in thermal equilibrium have been restricted to either ultrafast or slow timescales. A metastable state in an intermediate time window has now been identified in a photo-doped Mott insulator.

    • Xinwei Li
    • Iliya Esin
    • David Hsieh
    Research
    Nature Physics
    Volume: 21, P: 451-457

  • Second-order superlattices emerge from the interference between moiré superlattices of comparable periodicities. Direct real-space visualization reveals their rich structural diversity and extreme sensitivity to external parameters such as strain and twist angle.

    • Honglie Ning
    • Nuh Gedik
    News & Views
    Nature Materials
    Volume: 23, P: 1606-1607