Charge-ordering and optical transitions of LiV2O5 and NaV2O5

Details Charge-ordering and optical transitions of LiV2O5 and NaV2O5 Charge-ordering and optical transitions of LiV2O5 and NaV2O5

2000-10-20

arxiv.org/abs/cond-mat/0010327v2

PRB 63, 121102 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 3 figures final version, to appear in PRB

Scientific paper

10.1103/PhysRevB.63.121102

We present the measurements of the polarized optical spectra of NaV2O5 and LiV2O5. In an energy range from 0.5 to 5.5 eV we observe similar peaks in the E parallel a spectra of LiV2O5 and NaV2O5, which suggests similar electronic structure along the a axis in both materials. On the other hand, we find an almost complete suppression of the peaks in sigma_b of LiV2O5 around 1 and 5 eV. We attribute this suppression to the charge localization originating from the existence of double-chain charge-ordering patterin in LiV2O5.

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