Tuning the Magnetic Dimensionality by Charge Ordering in the Molecular TMTTF Salts
Tuning the Magnetic Dimensionality by Charge Ordering in the Molecular TMTTF Salts
We theoretically investigate the interplay between charge ordering and magnetic states in quasi-one-dimensional molecular conductors TMTTF$_2X$, motivated by the observation of a complex variation of competing and/or coexisting phases. We show that the ferroelectric-type charge order increases two-dimensional antiferromagnetic spin correlation, whereas in the one-dimensional regime two different spin-Peierls states …