Electro-reflectance spectra of blue bronze

R. C. Rai; V. A. Bondarenko; J. W. Brill

doi:10.1140/epjb/e2003-00273-5

Electro-reflectance spectra of blue bronze

R. C. Rai, V. A. Bondarenko, J. W. Brill

Physics And Astronomy

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6 Scopus citations

Abstract

We show that the infrared reflectance of the quasi-one dimensional charge-density-wave (CDW) conductor K_0.3MoO₃ (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 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 less than expected.

Original language	English
Pages (from-to)	233-238
Number of pages	6
Journal	European Physical Journal B
Volume	35
Issue number	2
DOIs	https://doi.org/10.1140/epjb/e2003-00273-5
State	Published - Sep 2003

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Electro-reflectance spectra of blue bronze",

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 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 less than expected.",

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T1 - Electro-reflectance spectra of blue bronze

AU - Rai, R. C.

AU - Bondarenko, V. A.

AU - Brill, J. W.

PY - 2003/9

Y1 - 2003/9

N2 - 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 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 less than expected.

AB - 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 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 less than expected.

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Electro-reflectance spectra of blue bronze

Abstract

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