Lattice dynamics and electron-phonon coupling in Sr2RuO4:: Inelastic neutron scattering and shell-model calculations

被引：33
作者：
Braden, M.
Reichardt, W.
Sidis, Y.
Mao, Z.
Maeno, Y.
机构：
[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
[2] Forschungszentrum Karlsruhe, Inst Festkorperphys, D-76021 Karlsruhe, Germany
[3] CEA, CNRS, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France
[4] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA
[5] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.76.014505
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The lattice dynamics in Sr2RuO4 has been studied by inelastic neutron scattering combined with shell-model calculations. The in-plane bond-stretching modes in Sr2RuO4 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 Sr2RuO4. The role of this electron-phonon coupling in the superconducting pairing remains, however, a challenging open issue.
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页数：10
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