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Infrared properties of $θ$-type ET charge-transfer salts: $θ$-ET$_2$CsZn(SCN)$_4$ vs $θ$-ET$_2$RbZn(SCN)$_4$

N. L. Wang·T. Feng·Z. J. Chen·H. Mori
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Abstract

We performed polarized far-infrared reflectance measurements at different temperatures on $θ$-ET$_2$RbZn(SCN)$_4$ and $θ$-ET$_2$CsZn(SCN)$_4$, two typical charge-transfer salts in a series of isostructural $θ$-ET$_2$MM'(SCN)$_4$. The measurements revealed distinct differences in both electronic and vibronic spectra, which provides a clue towards understanding the different metal-insulator transitions of the two salts.

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N. L. Wang, T. Feng, Z. J. Chen, H. Mori. 2002-11-12. Infrared properties of $θ$-type ET charge-transfer salts: $θ$-ET$_2$CsZn(SCN)$_4$ vs $θ$-ET$_2$RbZn(SCN)$_4$. https://arxiv.org/abs/cond-mat/0211226

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