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arXiv · 0705.3807

Pressure-induced changes in the optical properties of quasi-one-dimensional $β$-Na$_{0.33}$V$_2$O$_5$

Simone Frank·Christine A. Kuntscher·Ivan Gregora·Touru Yamauchi·Yutaka Ueda
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Abstract

The pressure-induced changes in the optical properties of $β$-Na$_{0.33}$V$_2$O$_5$ single crystals at room temperature were studied by polarization-dependent Raman and far-infrared reflectivity measurements under high pressure. From the changes in the Raman- and infrared-active phonon modes in the pressure range 9 - 12 GPa a transfer of charge between the different V sites can be inferred. The importance of electron-phonon coupling in the low-pressure regime is discussed.

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Simone Frank, Christine A. Kuntscher, Ivan Gregora, Touru Yamauchi, Yutaka Ueda. 2007-05-25. Pressure-induced changes in the optical properties of quasi-one-dimensional $β$-Na$_{0.33}$V$_2$O$_5$. https://doi.org/10.1103/physrevb.76.075128

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