Phonon Anomalies due to Collective Stripe Modes in High [Formula presented] Cuprates

Eiji Kaneshita, Masanori Ichioka, Kazushige Machida

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Phonon anomalies observed in various high [Formula presented] cuprates by neutron experiments are analyzed theoretically in terms of the stripe concept. The phonon self-energy correction is evaluated by taking into account the charge collective modes of stripes, giving rise to dispersion gap, or kink and shadow phonon modes at twice the wave number of spin stripe. These features coincide precisely with observations. The gapped branches of the phonon are found to be in-phase and out-of-phase oscillations relative to the charge collective mode.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Issue number11
Publication statusPublished - Jan 1 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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