VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • In-gap band formation in a periodically driven charge density wave insulator [Elektronski vir]
    Osterkorn, Alexander ; Meyer, Constantin, fizik ; Manmana, Salvatore R.
    Modern time-resolved spectroscopy experiments on quantum materials raise the question, how strong electron-electron interactions, in combination with periodic driving, form unconventional transient ... states. Here we show using numerically exact methods that in a driven strongly interacting charge-density-wave insulator a band-like resonance in the gap region is formed. We associate this feature to the so-called Villain mode in quantum-magnetic materials, which originates in moving domain walls induced by the interaction. We do not obtain the in-gap band when driving a non-interacting charge density wave model. In contrast, it appears in the interacting system also in equilibrium at intermediate temperatures and in the short-time evolution of the system after a quantum quench to the lowest-order high-frequency effective Floquet Hamiltonian. Our findings connect the phenomenology of a periodically driven strongly correlated system and its quench dynamics to the finite-temperature dynamical response of quantum-magnetic materials and will be insightful for future investigations of strongly correlated materials in pump-probe setups.
    Vir: Communications physics [Elektronski vir]. - ISSN 2399-3650 (Vol. 6, iss. 1, 2023, str. 1-11)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2023
    Jezik - angleški
    COBISS.SI-ID - 181207555

    Povezava(-e):

    https://www.nature.com/articles/s42005-023-01346-2
    DOI

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