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Journal Article

Magnetic Resonant Mode in the Single-Layer High-Temperature Superconductor Tl2Ba2CuO6+δ

MPS-Authors
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He,  H.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;
Scientific Facility Crystal Growth (Masahiko Isobe), Max Planck Institute for Solid State Research, Max Planck Society;

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Ulrich,  C.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;
Scientific Facility Thin Film Technology (Gennady Logvenov), Max Planck Institute for Solid State Research, Max Planck Society;

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Pailhès,  S.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Keimer,  B.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

He, H., Bourges, P., Sidis, Y., Ulrich, C., Regnault, L. P., Pailhès, S., et al. (2002). Magnetic Resonant Mode in the Single-Layer High-Temperature Superconductor Tl2Ba2CuO6+δ. Science, 295(5557), 1045-1047.


Cite as: https://hdl.handle.net/21.11116/0000-000E-E4D9-C
Abstract
An unusual spin excitation mode observed by neutron scattering
has inspired numerous theoretical studies of the interplay
between charged quasiparticles and collective spin excitations
in the copper oxide high-temperature superconductors. The mode
has, thus far, only been observed in materials with crystal
structures consisting of copper oxide bilayers, and it is
absent in the single-layer compound La2-xSrxCoO4+delta.
Neutron-scattering data now show that the mode is present in
Tl2Ba2CuO6+delta, a single-layer compound with a
superconducting transition temperature of similar to90 kelvin,
demonstrating that it is a generic feature of the copper oxide
superconductors, independent of the layer sequence. This
restricts the theoretical models for the origin of the resonant
mode and its role in the mechanism of high-temperature
superconductivity.