First- and second-order phase transitions between the uniform and FFLO excitonic states in the three-chain Hubbard model for Ta2NiSe5

Abstract

We examine the free energy and the thermodynamic properties in the three-chain Hubbard model for Ta2NiSe5 to clarify the phase transitions between the uniform and the FFLO excitonic states which are expected to be observed in Ta2NiSe5 under high pressure.

arXiv comment3 pages, 3 figures

References in corpus (3)

• Orthorhombic-to-Monoclinic Phase Transition of Ta2NiSe5 Induced by the Bose-Einstein Condensation of Excitons
• Microscopic quantum interference in excitonic condensation of Ta${}_2$NiSe${}_5$
• FFLO Excitonic State in the Three-Chain Hubbard Model for Ta${}_2$NiSe${}_5$

Cited by in corpus (6)

• Orthorhombic-to-monoclinic transition in Ta${}_2$NiSe${}_5$ due to a zone-center optical phonon instability
• A New Era of Excitonic Insulators
• Orbital diamagnetic susceptibility in excitonic condensation phase
• Electric and magnetic multipoles and bond orders in excitonic insulators
• Excitonic Phase Diagram of the Three-Chain Hubbard Model for Semiconducting and Semimetallic Ta${}_2$NiSe${}_5$
• FFLO Superconductivity Mediated by Excitonic Fluctuation in Semimetallic Ta${}_2$NiSe${}_5$