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Delicate competition between different excitonic orderings in Ta[sub]2NiSe[sub]5
Banhi Chatterjee, Denis Golež, Jernej Mravlje
Izvirni znanstveni članek
Oznake: fizika kondenzirane snovi;polprevodniki;2D materiali;condensed matter physics;semiconductors;2D materials;excitonic fluctuations;structural instabilities;electron correlations;DFT calculations;mean-field theory;
We investigate the energetics of the quasi-one-dimensional layered compound Ta$_2$NiSe$_5$ in the excitonic phase within the six-band model using Hartree–Fock calculations. We calculate energies of states with different kinds of excitonic order and show that they differ by less than meV and depend s ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
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