Magnetism and Charge ordering in TMTTF${}_2$-PF${}_6$ organic crystals

Abstract

Using a combination of Density Functional Theory, mean-field analysis and exact diagonalization calculations we reveal the emergence of a dimerized charge ordered state in TMTTF${}_2$-PF${}_6$ organic crystal. The interplay between charge and spin order leads to a rich phase diagram. Coexistence of charge ordering with a structural dimerization results in a ferroelectric phase, which has been observed experimentally. The tendency to the dimerization is magnetically driven revealing TMTTF${}_2$-PF${}_6$ as a multiferroic material.

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Cited by in corpus (6)

• Charge-Ordering Transition in (TMTTF)${}_2$X Explored via Dilatometry
• Correlation-driven electronic multiferroicity in (TMTTF)${}_2$-$X$ organic crystals
• Photoexcitation of a polarization-inverted domain from the charge-ordered ferroelectric ground state of (TMTTF)${}_2$PF${}_6$
• Superlattice Induced by Charge Order in the Organic Spin Chain (TMTTF)${}_{2}X$ ($X=$ SbF${}_6$, AsF${}_6$ and PF${}_6$) Revealed by High Field EPR
• Altermagnetism in an interacting model of Kagome materials
• The optical conductivity for a spin-Peierls ground state of (TMTTF)${}_2$PF${}_6$ with tetramer formation