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Showing 1–18 of 18 results
Advanced filters: Author: Edoardo Baldini Clear advanced filters

  • Nonlinear optical micropolarimetry and atomistic Monte Carlo simulations of monolayer NiPS3 evidence a Berezinskii–Kosterlitz–Thouless phase that, with decreasing temperature, gives way to long-range order consistent with a six-state clock model.

    • Frank Y. Gao
    • Dong Seob Kim
    • Edoardo Baldini
    Research
    Nature Materials
    P: 1-9

  • Previous work has shown the existence of spin-orbit-entangled excitons and their coupling to antiferromagnetism in the correlated insulator NiPS3. Here the authors show that non-equilibrium driving of these excitons produces a transient metallic antiferromagnetic state that cannot be achieved by tuning the temperature in equilibrium.

    • Carina A. Belvin
    • Edoardo Baldini
    • Nuh Gedik
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • An electrically insulating quantum material turns metallic when placed between two semi-reflecting mirrors — even if there is no illumination between them. This discovery paves the way for engineering other phase transitions.

    • Edoardo Baldini
    News & Views
    Nature
    Volume: 622, P: 464-465

  • A new method that uses light-induced superconducting quenches to generate abrupt, sub-picosecond, local magnetic field steps has potential applications ranging from spintronics to spectroscopy of quantum materials.

    • Edoardo Baldini
    News & Views
    Nature Photonics
    Volume: 19, P: 553-554

  • Magnons—quanta of spin waves—have potential applications in signal processing technology. But it is challenging to obtain coupling between different magnons. Now a study achieves this by demonstrating nonlinear magnon mixing in an antiferromagnet.

    • Zhuquan Zhang
    • Frank Y. Gao
    • Keith A. Nelson
    Research
    Nature Physics
    Volume: 20, P: 801-806

  • Inducing coherent interactions between distinct magnon modes—collective excitations of magnetic order—has been challenging. A canted antiferromagnet has demonstrated coherent magnon upconversion induced by terahertz laser pulses.

    • Zhuquan Zhang
    • Frank Y. Gao
    • Keith A. Nelson
    Research
    Nature Physics
    Volume: 20, P: 788-793

  • Hubbard excitons are elusive quasiparticles that are predicted to form in strongly correlated insulators. Detecting their internal structure and dynamics clarifies the involvement of spin fluctuations in their binding and recombination processes.

    • Edoardo Baldini
    News & Views
    Nature Physics
    Volume: 19, P: 1761-1762

  • The Mahan exciton, exotic quasiparticle predicted in 1967, had never been found in room temperature semiconductors. With ultrafast optics and many-body theory, Palmieri et al. show that methylammonium lead bromide perovskites are ideal platforms to unveil Mahan exciton physics at room temperature.

    • Tania Palmieri
    • Edoardo Baldini
    • Majed Chergui
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • A van der Waals magnetic insulator, NiPS3, hosts a type of polaritonic quasiparticle that emerges from the strong coupling between an optical microcavity mode and spin-correlated excitons.

    • Florian Dirnberger
    • Rezlind Bushati
    • Vinod M. Menon
    Research
    Nature Nanotechnology
    Volume: 17, P: 1060-1064

  • Three different ultrafast probes investigate a non-adiabatic phase transition and find substantial evidence of topological defects inhibiting the reformation of the equilibrium phase.

    • Alfred Zong
    • Anshul Kogar
    • Nuh Gedik
    Research
    Nature Physics
    Volume: 15, P: 27-31

  • A single field-enhanced terahertz pulse was used to create 1\({T}^{{\prime} }\)-MoTe2 out of few-layer H-MoTe2 crystals, providing insights into the ultrafast polymorphic transition dynamics and resolving a long-standing debate over the realization of this transition by high-energy photon irradiation.

    • Jiaojian Shi
    • Ya-Qing Bie
    • Keith A. Nelson
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • A global network of researchers was formed to investigate the role of human genetics in SARS-CoV-2 infection and COVID-19 severity; this paper reports 13 genome-wide significant loci and potentially actionable mechanisms in response to infection.

    • Mari E. K. Niemi
    • Juha Karjalainen
    • Chloe Donohue
    ResearchOpen Access
    Nature
    Volume: 600, P: 472-477

  • Absorption lines of iron in the dayside atmosphere of an ultrahot giant exoplanet disappear after travelling across the nightside, showing that the iron has condensed during its travel.

    • David Ehrenreich
    • Christophe Lovis
    • Filippo Zerbi
    Research
    Nature
    Volume: 580, P: 597-601

  • Spectroscopic study of the low-energy excitations in magnetite Fe3O4 shows the signatures of its charge-ordered structure involved in the metal–insulator transition, whose building blocks are the three-site small polarons, termed trimerons.

    • Edoardo Baldini
    • Carina A. Belvin
    • Nuh Gedik
    Research
    Nature Physics
    Volume: 16, P: 541-545

  • Here the authors combine steady-state angle-resolved photoemission spectroscopy, ellipsometry and ultrafast two-dimensional ultraviolet spectroscopy to examine the role of many-body correlations in anatase TiO2, revealing the existence of strongly bound excitons in single crystals and nanoparticles.

    • E. Baldini
    • L. Chiodo
    • M. Chergui
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-11