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Electro-Reflectance Spectra of Blue Bronze | | R.C. Rai
; V.A. Bondarenko
; J.W. Brill
; | | Date: |
3 Jul 2003 | | Subject: | cond-mat | | Abstract: | We show that the infrared reflectance of the quasi-one dimensional charge-density-wave (CDW) conductor K0.3MoO3 (blue bronze) varies with position when a voltage greater than the CDW depinning threshold is applied. The spatial dependence and spectra associated with these changes are generally as expected from the electro-transmission [B.M. Emerling, et al, Eur. Phys. J. B 16, 295 (2000)], but there are some differences which might be associated with changes in the CDW properties on the surface. We have examined the electro-reflectance spectrum associated with CDW current investigation for light polarized parallel to the conducting chains for signs of expected current-induced intragap states, and conclude that the density of any such states is at least an order of magnitude lower than expected. | | Source: | arXiv, cond-mat/0307075 | | Services: | Forum | Review | PDF | Favorites | |
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