Physics – Condensed Matter – Superconductivity
Scientific paper
2002-11-12
Physica C 424 (2005) 45--49.
Physics
Condensed Matter
Superconductivity
Proceedings of the LT23 conference (Hiroshima-Aug2002)
Scientific paper
10.1016/j.physc.2003.11.086
Inelastic neutron scattering experiments in high-$T_c$ cuprates have evidenced a new magnetic excitation present in the superconducting state. In particular, recent experiments on single layer Tl$_{2}$Ba$_{2}$CuO$_{6+\delta }$, performed near optimum doping ($ T_{c} \sim 90$ K), provide evidence of a sharp magnetic resonant mode below $ T_{c}$, similar to previous reports on the YBCO and BSCCO bilayer systems. This result supports models that ascribe a key role to magnetic excitations in the mechanism of superconductivity.
Bourges Ph.
Keimer Bernhard
Pailhes Stéphane
Regnault Louis-Pierre
Sidis Yvan
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