Phonon softening in HgBa2CuO4+δ observed by inelastic X-ray scattering

H. Uchiyama, A. Q.R. Baron, S. Tsutsui, Y. Tanaka, W. Z. Hu, Ayako Yamamoto, S. Tajima, Y. Endoh

Research output: Contribution to journalArticle

Abstract

Phonon dispersion of HgBa2CuO4+δ along the direction close to [100] was measured with using inelastic X-ray scattering. The longitudinal optical Cu-O bond stretching mode shows an anomalous softening at q∼0.3, similar to reports for other high-Tc cuprates, such as YBa2Cu3O7-δ and La2-x-Sr xCuO4. This feature indicates a common property in the high-Tc cuprates, independent of lattice distortion and transition temperature.

Original languageEnglish
Pages (from-to)3130-3133
Number of pages4
JournalPhysica Status Solidi C: Conferences
Volume1
Issue number11
DOIs
Publication statusPublished - 2004 Dec 1
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Uchiyama, H., Baron, A. Q. R., Tsutsui, S., Tanaka, Y., Hu, W. Z., Yamamoto, A., ... Endoh, Y. (2004). Phonon softening in HgBa2CuO4+δ observed by inelastic X-ray scattering. Physica Status Solidi C: Conferences, 1(11), 3130-3133. https://doi.org/10.1002/pssc.200405350