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

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

Research output: Contribution to journalArticlepeer-review


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
Issue number11
Publication statusPublished - 2004
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


Dive into the research topics of 'Phonon softening in HgBa2CuO4+δ observed by inelastic X-ray scattering'. Together they form a unique fingerprint.

Cite this