Work

Delicate Competition Between Different Excitonic Orderings in Ta2NiSe5

Year: 2025

Type: article

Abstract: We investigate the energetics of the quasi-one-dimensional layered compound Ta2NiSe5 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 sensitively on precise values of interchain hopping matrix elements.

Source: Crystals

DOI: 10.3390/cryst15050414

Authors: Banhi Chatterjee, Denis Golež, Jernej Mravlje

Institutions: Jožef Stefan Institute, Jožef Stefan International Postgraduate School, University of Duisburg-Essen, University of Ljubljana

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,534

Funder: Javna Agencija za Raziskovalno Dejavnost RS