Study of phonon anomalies in stripe phase of high Tc cuprates

Eiji Kaneshita, Masanori Ichioka, Kazushige Machida

Research output: Contribution to journalArticle

Abstract

We theoretically investigate phonon anomalies in various high T c cuprates in terms of stripe concept. They could be caused by coupling with charge translational modes of stripes. The phonon self-energy correction is evaluated by taking into account the collective stripe modes. The coupling with stripes causes a phonon dispersion gap when the phonon dispersion has a steep slope around 2Q. No gap appears when the phonon spectrum has a flat dispersion around 2Q. Thus it turns out that these are depending on the slope of the phonon dispersions.

Original languageEnglish
Pages (from-to)777-778
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - May 2003

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cuprates
anomalies
slopes
Dispersions
causes
energy

Keywords

  • Collective modes
  • Hubbard model
  • Phonons
  • Spin-density waves

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Study of phonon anomalies in stripe phase of high Tc cuprates. / Kaneshita, Eiji; Ichioka, Masanori; Machida, Kazushige.

In: Physica B: Condensed Matter, Vol. 329-333, No. II, 05.2003, p. 777-778.

Research output: Contribution to journalArticle

Kaneshita, Eiji ; Ichioka, Masanori ; Machida, Kazushige. / Study of phonon anomalies in stripe phase of high Tc cuprates. In: Physica B: Condensed Matter. 2003 ; Vol. 329-333, No. II. pp. 777-778.
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