Charge-density wave formation in Sr14-xCaxCu24O41

B. Gorshunov, P. Haas, T. Rõõm, M. Dressel, T. Vuletić, B. Korin-Hamzić, S. Tomić, J. Akimitsu, T. Nagata

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

The electrodynamic response of the spin-ladder compound Sr14-xCaxCu24O41(x=0,3,9) has been studied from radio frequencies up to the infrared. At temperatures below 250 K a pronounced absorption peak appears around 12 cm-1 in Sr14Cu24O41 for the radiation polarized along the chains/ladders (E∥c). In addition a strongly temperature-dependent dielectric relaxation is observed in the kHz - MHz range. We explain this behavior by a charge-density wave which develops in the ladders and produces a phason mode pinned at 12 cm-1. With increasing x the mode shifts up in frequency and eventually disappears for x=9 because the dimensionality of the system crosses over from one to two dimensions, giving way to the superconducting ground state under pressure.

Original languageEnglish
Article number060508
Pages (from-to)605081-605084
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number6
DOIs
Publication statusPublished - Aug 1 2002
Externally publishedYes

Fingerprint

Charge density waves
Ladders
ladders
polarized radiation
Dielectric relaxation
Electrodynamics
electrodynamics
Ground state
radio frequencies
Infrared radiation
Radiation
Temperature
ground state
temperature
shift

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Gorshunov, B., Haas, P., Rõõm, T., Dressel, M., Vuletić, T., Korin-Hamzić, B., ... Nagata, T. (2002). Charge-density wave formation in Sr14-xCaxCu24O41 . Physical Review B - Condensed Matter and Materials Physics, 66(6), 605081-605084. [060508]. https://doi.org/10.1103/PhysRevB.66.060508

Charge-density wave formation in Sr14-xCaxCu24O41 . / Gorshunov, B.; Haas, P.; Rõõm, T.; Dressel, M.; Vuletić, T.; Korin-Hamzić, B.; Tomić, S.; Akimitsu, J.; Nagata, T.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 6, 060508, 01.08.2002, p. 605081-605084.

Research output: Contribution to journalArticle

Gorshunov, B, Haas, P, Rõõm, T, Dressel, M, Vuletić, T, Korin-Hamzić, B, Tomić, S, Akimitsu, J & Nagata, T 2002, 'Charge-density wave formation in Sr14-xCaxCu24O41 ', Physical Review B - Condensed Matter and Materials Physics, vol. 66, no. 6, 060508, pp. 605081-605084. https://doi.org/10.1103/PhysRevB.66.060508
Gorshunov B, Haas P, Rõõm T, Dressel M, Vuletić T, Korin-Hamzić B et al. Charge-density wave formation in Sr14-xCaxCu24O41 . Physical Review B - Condensed Matter and Materials Physics. 2002 Aug 1;66(6):605081-605084. 060508. https://doi.org/10.1103/PhysRevB.66.060508
Gorshunov, B. ; Haas, P. ; Rõõm, T. ; Dressel, M. ; Vuletić, T. ; Korin-Hamzić, B. ; Tomić, S. ; Akimitsu, J. ; Nagata, T. / Charge-density wave formation in Sr14-xCaxCu24O41 . In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 66, No. 6. pp. 605081-605084.
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