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Infrared properties of W-doped charge-density-wave material K$_{0.3}$MoO$_3$

T. Feng·N. L. Wang·P. Zheng·Z. J. Chen·M. L. Tian
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Abstract

The optical conductivity spectra of quasi-one dimensional compounds K$_{0.3}$Mo$_{1-x}$W$_x$O$_3$ (x=0, 0.03 and 0.15) have been studied over broad frequencies. While the dc resistivity measurements indicate no sign of CDW transition in heavily W-doped blue bronze, the optical conductivity spectra still show a single particle gap at around 0.2 eV for \textbf{E} parallel to the chain direction. Such impurity effect challenges our understanding about the occurrence of the optical gap with the CDW transition.

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T. Feng, N. L. Wang, P. Zheng, Z. J. Chen, M. L. Tian. 2002-11-12. Infrared properties of W-doped charge-density-wave material K$_{0.3}$MoO$_3$. https://doi.org/10.1016/s0921-4526(02)02150-6

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