Uniaxial strain tunes κ-(BEDT-TTF)₂Hg(SCN)₂X (X=Br,Cl) across the Mott-to-charge-ordered phase boundary, inducing order at 33 K in the Br compound and suppressing it to 10 K in the Cl compound, as tracked by Raman spectroscopy.
In κ-Hg-Cl, the intradimer distance is 3.5 ˚ A and the interdimer distances are 7.1 ˚ Aand 8.1 ˚ A
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Tuning Charge Order in $\kappa$-(BEDT-TTF)$_2$Hg(SCN)$_2$X (X=Br, Cl) via Uniaxial Strain
Uniaxial strain tunes κ-(BEDT-TTF)₂Hg(SCN)₂X (X=Br,Cl) across the Mott-to-charge-ordered phase boundary, inducing order at 33 K in the Br compound and suppressing it to 10 K in the Cl compound, as tracked by Raman spectroscopy.