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Showing 1 to 3 of 3 for “"Excitonic Insulator"”.
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Ultrafast photoinduced dynamics of low-dimensional excitonic materials at room temperature
… We next turn our attention to the quasi-1D excitonic insulator candidate Ta₂NiSe₅. At 328 K, this material is proposed to undergo a spontaneous symmetry breaking, leading to the Bose-Einstein condensation of excitons in the ground state. Yet, experiment and theory continue to wrestle over …
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Collective excitations in layered materials with momentum-resolved electron energy loss spectroscopy
… superconductors, charge density waves, and Mott insulators among many others. These interactions are quantified by the charge density response function, chi(q,w) (or the closely related inverse dielectric function). The measurement of the energy- and momentum-resolved chi(q,w) over a large phase …
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Collective Phenomena in Excitonic Quantum Matter
… leads to the macroscopic condensation of “excitonic insulators” in small-bandgap materials, with quantum coherence and possible super-transport persisting up to room temperature. Alternatively, in large-bandgap semiconductors, the Bose-Einstein condensation of optically active metastable …