Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-II-ordered YBa2Cu3O6.54

E. Blackburn*, J. Chang, A. H. Said, B. M. Leu, Ruixing Liang, D. A. Bonn, W. N. Hardy, E. M. Forgan, S. M. Hayden

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

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Abstract

Inelastic x-ray scattering is used to investigate charge-density wave (CDW) formation and the low-energy lattice dynamics of the underdoped high-temperature superconductor ortho-II YBa2Cu3O6.54. We find that, for a temperature similar to ∼1/3 of the CDW onset temperature (≈ 155 K), the CDW order is static within the resolution of the experiment, that is the inverse lifetime is less than 0.3 meV. In the same temperature region, low-energy phonons near the ordering wave vector of the CDW show large increases in their linewidths. This contrasts with the usual behavior in CDW systems where the phonon anomalies are strongest near the CDW onset temperature.

Original languageEnglish
Article number054506
Pages (from-to)1-7
Number of pages7
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume88
Issue number5
DOIs
Publication statusPublished - 19 Aug 2013

Bibliographical note

Accepted version

Keywords

  • HIGH-TEMPERATURE SUPERCONDUCTORS
  • NEUTRON-SCATTERING
  • FERMI-SURFACE
  • STRIPE ORDER
  • PHASE
  • DICHALCOGENIDES
  • TRANSITION

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