Phonon anomalies due to stripe collective modes in high T_c cuprates

Abstract

Phonon anomalies observed in various high $T_c$ 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.

4 pages, 5 figures

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• Mixed lattice and electronic states in high-temperature superconductors
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• Bond-Stretching-Phonon Anomalies in Stripe-Ordered La(1.69)Sr(0.31)NiO(4)
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• Direct observation of dynamic charge stripes in La2-xSrxNiO4
• Isotope effect and bond-stretching phonon anomaly in high-Tc cuprates
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• Evidence for a charge collective mode associated with superconductivity in copper oxides from neutron and x-ray scattering measurements of La${}_{2-x}$Sr${}_x$CuO${}_4$
• Spin dynamics in the stripe phase of the cuprates
• Giant electron-phonon anomaly in doped La2CuO4 and other cuprates
• Charge Order Lock-in by Electron-Phonon Coupling in La${}_{1.675}$Eu${}_{0.2}$Sr${}_{0.125}$CuO${}_4$
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• Ubiquitous Charge Order Correlations in High-Temperature Superconducting Cuprates
• Stripes in cuprate superconductors: Excitations and dynamic dichotomy
• q-Dependence of the giant bond-stretching phonon anomaly in the stripe compound La1.48Nd0.4Sr0.12CuO4 measured by IXS
• Effects of charge inhomogeneities on elementary excitations in La_{2-x}Sr_xCuO_4
• Interplay between charge-lattice interaction and strong electron correlations in cuprates: phonon anomaly and spectral kinks
• In-plane Isotropy of the Low Energy Phonon Anomalies in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Decoupling of Static and Dynamic Charge Correlations revealed by Uniaxial Strain in a Cuprate Superconductor
• Fermi Arc of Metallic Diagonal Stripes in High Tc Cuprates
• Anomalous Dispersion of LO Phonons in Oxygen-Doped La${}_{2-x}$Sr${}_x$CuO${}_{4+\delta }$
• Hybridization of lattice and charge order excitations in a superconducting cuprate
• Dynamic charge inhomogenity in cuprate superconductors
• Pressure-induced phase transition to a novel spin state in striped nickelates
• High temperature superconductivity: Cooper pairs in trap