Neutron scattering Measurements of the phonon density of states of FeSe$_{1-x}$ superconductors

Details Neutron scattering Measurements of the phonon density of states of FeSe$_{1-x}$ superconductors Neutron scattering Measurements of the phonon density of states of FeSe$_{1-x}$ superconductors

2008-11-07

arxiv.org/abs/0811.1215v3

Phys. Rev. B 79, 014519 (2009)

Physics

Condensed Matter

Superconductivity

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Scientific paper

10.1103/PhysRevB.79.014519

Inelastic neutron-scattering experiments have been carried out on polycrystalline samples of the FeSe$_{1-x}$ superconductors. We report the phonon density of states for FeSe$_{1-x}$ with Tc$\approx$8 K. The phonon cutoff frequency is observed around 40 meV. No significant change is observed across the superconducting transition. The measurements support the published first-principles calculations [A. Subedi et al., Phys. Rev. B \textbf{78}, 134514 (2008)].

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