Oxygen phonon branches in overdoped La${}_{1.7}$Sr${}_{0.3}$CuO${}_4$

Abstract

The dispersion of the Cu-O bond-stretching vibrations in overdoped La${}_{1.7}$Sr${}_{0.3}$CuO${}_4$ (not superconducting) has been studied by high resolution inelastic neutron scattering. It was found that the doping-induced renormalization of the so-called breathing and the half-breathing modes is larger than in optimally doped La${}_{1.85}$Sr${}_{0.15}$CuO${}_4$. On the other hand, the phonon linewidths are generally smaller in the overdoped sample. Features observed in optimally doped La${}_{1.85}$Sr${}_{0.15}$CuO${}_4$ which suggest a tendency towards charge stripe formation are absent in overdoped La${}_{1.7}$Sr${}_{0.3}$CuO${}_4$.

arXiv comment6 pages, 8 figures

References in corpus (5)

• Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors
• Electron-phonon coupling reflecting dynamic charge inhomogeneity in copper-oxide superconductors
• Phonon dispersion and electron-phonon interaction for YBa_2Cu_3O_7 from first-principles calculations
• Electron-phonon interaction in the t-J model
• Modeling of the electronic state of the High-Temperature Superconductor LaCuO: Phonon dynamics and charge response

Cited by in corpus (28)

• Progress and perspectives on the electron-doped cuprates
• Interplay between electron-phonon and Coulomb interactions in cuprates
• An Isotopic Fingerprint of Electron-Phonon Coupling in High-Tc Cuprates
• Photoemission kinks and phonons in cuprates
• Nature of the charge-density wave excitations in cuprates
• Phonon anomalies and dynamic stripes
• Isotope effect and bond-stretching phonon anomaly in high-Tc cuprates
• 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${}_4$
• Giant electron-phonon anomaly in doped La2CuO4 and other cuprates
• The impact of dynamical screening on the phonon dynamics of LaCuO
• Electron-phonon anomaly related to charge stripes: static stripe phase versus optimally-doped superconducting La1.85Sr0.15CuO4
• Effect of the electronic charge gap on LO bond-stretching phonons in undoped La${}_2$CuO${}_4$ calculated using LDA+U
• q-Dependence of the giant bond-stretching phonon anomaly in the stripe compound La1.48Nd0.4Sr0.12CuO4 measured by IXS
• Phonon anomalies and lattice dynamics in superconducting oxychlorides Ca${}_{2-x}$CuO${}_2$Cl
• Superconducting pairing and the pseudogap in nematic striped La2-xSrxCuO4
• Effects of charge inhomogeneities on elementary excitations in La_{2-x}Sr_xCuO_4
• Strong enhancement of d-wave superconducting state in the three-band Hubbard model coupled to an apical oxygen phonon
• Suppression of superconductivity in the Hubbard model by buckling and breathing phonons
• Three interaction energy scales in single-layer high-T${}_C$ cuprate HgBa${}_2$CuO${}_{4+\delta }$
• Interplay between charge-lattice interaction and strong electron correlations in cuprates: phonon anomaly and spectral kinks
• A microscopic modeling of phonon dynamics and charge response in NdCuO
• Phonon anomalies with doping in superconducting oxychlorides Ca2-xCuO2Cl2
• Resistance of High-Temperature Cuprate Superconductors
• Phonon dispersion and anomalies in one-layer high-temperature superconductors
• Dynamic charge inhomogenity in cuprate superconductors
• The influence of phonon symmetry and electronic structure on the electron-phonon coupling momentum dependence in cuprates
• Giant electron-phonon coupling of the breathing plane oxygen phonons in the dynamic stripe phase of La${}_{1.67}$Sr${}_{0.33}$NiO${}_4$
• Nonlocal electron-phonon interaction as a source of dynamic charge stripes in the cuprates