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Showing 1–7 of 7 results
Advanced filters: Author: Choongjae Won Clear advanced filters

  • The Higgs mode in condensed matter physics refers to the oscillations of the amplitude of the order parameter, and single Higgs modes have been studies in various systems. Here the authors report real-space observation of two coupled Higgs modes in a 1D charge density wave phase of CuTe.

    • SeongJin Kwon
    • Hyunjin Jung
    • Han Woong Yeom
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-6

  • We assign the high pressure structural phase of transition metal ditelluride (MTe2, M = W or Mo), one of the most extensively investigated material groups. From the accurate assignment of structural phases, we offer comprehensive understanding of the electronic and topological phase evolutions. We can also clearly demonstrate anisotropic pressure-dependent structural evolutions for transition metal ditellurides, which can be generic behaviors of two-dimensional van der Waals materials under pressure.

    • Hwiin Ju
    • Siwon Oh
    • Jong Seok Lee
    ResearchOpen Access
    NPG Asia Materials
    Volume: 17, P: 1-8

  • The underlying mechanism behind charge density wave formation in Kagome metals is still not fully understood. Here, the authors propose that the phonon modes become frustrated in the charge density wave phase of CsV3Sb5.

    • Seung-Phil Heo
    • Choongjae Won
    • Changyong Song
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • The Kibble–Zurek mechanism is shown to apply to structural Ising domains in three-dimensional materials. Long-range interactions modify the critical exponents away from theoretical predictions.

    • Kai Du
    • Xiaochen Fang
    • Sang-Wook Cheong
    Research
    Nature Physics
    Volume: 19, P: 1495-1501