Raman-active phonons and their doping dependence in spin-ladder Sr14Cu24O41

M. Osada, M. Kakihana, I. Nagai, T. Noji, T. Adachi, Y. Koike, J. Bäckström, M. Käll, L. Börjesson

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Raman spectra of Sr14-xCaxCu24O41 have been investigated in a number of well-defined single-crystal and polycrystalline samples. From the polarization and doping dependence, and from a comparison with previous reports on isostructural compounds, we identify the (4Ag + 4B1g + 3B2g + B3g) modes that are Raman allowed within the simple Fmmm structure, consisting of two Cu-O sub-lattices. With increasing Ca content, we observe the intensity decrease in the modes involving the atoms of the ladders. This effect, analogous to the CuO2-plane phonons in the high-Tc cuprates, can be attributed to the hole transfer from the chains to the ladders.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume338
Issue number1
DOIs
Publication statusPublished - 2000 Aug 1
Externally publishedYes

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Ladders
Phonons
ladders
phonons
Doping (additives)
cuprates
Raman scattering
Single crystals
Polarization
Raman spectra
Atoms
single crystals
polarization
atoms

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Osada, M., Kakihana, M., Nagai, I., Noji, T., Adachi, T., Koike, Y., ... Börjesson, L. (2000). Raman-active phonons and their doping dependence in spin-ladder Sr14Cu24O41. Physica C: Superconductivity and its Applications, 338(1), 161-165. https://doi.org/10.1016/S0921-4534(00)00220-3

Raman-active phonons and their doping dependence in spin-ladder Sr14Cu24O41. / Osada, M.; Kakihana, M.; Nagai, I.; Noji, T.; Adachi, T.; Koike, Y.; Bäckström, J.; Käll, M.; Börjesson, L.

In: Physica C: Superconductivity and its Applications, Vol. 338, No. 1, 01.08.2000, p. 161-165.

Research output: Contribution to journalArticle

Osada, M, Kakihana, M, Nagai, I, Noji, T, Adachi, T, Koike, Y, Bäckström, J, Käll, M & Börjesson, L 2000, 'Raman-active phonons and their doping dependence in spin-ladder Sr14Cu24O41', Physica C: Superconductivity and its Applications, vol. 338, no. 1, pp. 161-165. https://doi.org/10.1016/S0921-4534(00)00220-3
Osada, M. ; Kakihana, M. ; Nagai, I. ; Noji, T. ; Adachi, T. ; Koike, Y. ; Bäckström, J. ; Käll, M. ; Börjesson, L. / Raman-active phonons and their doping dependence in spin-ladder Sr14Cu24O41. In: Physica C: Superconductivity and its Applications. 2000 ; Vol. 338, No. 1. pp. 161-165.
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