Lattice dynamics and electron-phonon coupling in Sr2RuO4

Details Lattice dynamics and electron-phonon coupling in Sr2RuO4 Lattice dynamics and electron-phonon coupling in Sr2RuO4

2007-02-13

arxiv.org/abs/cond-mat/0702293v1

Phys. Rev. B 76, 014505 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, 8 figures 2 tables

Scientific paper

10.1103/PhysRevB.76.014505

The lattice dynamics in Sr$_2$RuO$_4$ has been studied by inelastic neutron scattering combined with shell-model calculations. The in-plane bond-stretching modes in Sr$_2$RuO$_4$ exhibit a normal dispersion in contrast to all electronically doped perovskites studied so far. Evidence for strong electron phonon coupling is found for c-polarized phonons suggesting a close connection with the anomalous c-axis charge transport in Sr$_2$RuO$_4$.

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