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 - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Physical Chemistry Letters Année : 2018

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

Résumé

We have investigated the charge ordering phase of the quasi one dimensional quan- tum antiferromagnet (TMTTF)2X (X = SbF6, AsF6 and PF6) using high fields/frequencies electron paramagnetic resonance. In addition to the uniform displacement of the counter anions involved in the charge order phase, we report the existence of a superlattice between the spin chains in the direction c, caused by the space modulation of the charge order. When the field is high enough, the magnetic decoupling of the spin chains allows us to estimate the interaction between the chains, Jc < 1 mK, three orders of magnitude lower than expected from the mean field theory.
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Dates et versions

hal-01860270 , version 1 (27-08-2018)

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Charles-Emmanuel Dutoit, Anatoli Stepanov, Johan van Tol, Maylis Orio, Sylvain Bertaina. 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. Journal of Physical Chemistry Letters, 2018, The Journal of Physical Chemistry Letters, 9, pp.5598. ⟨10.1021/acs.jpclett.8b02070⟩. ⟨hal-01860270⟩
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