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)

    Abstract

    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
    Volume88
    Issue number11
    DOIs
    Publication statusPublished - Jan 1 2002

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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