期刊
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
卷 424, 期 1-2, 页码 45-49出版社
ELSEVIER
DOI: 10.1016/j.physc.2003.11.086
关键词
superconductivity; YBa2Cu3O7; inelastic neutron scattering; magnetic fluctuations
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 Tl2Ba2CuO6+delta, performed Dear optimum doping (T-c similar to 90 K), provide evidence of a sharp magnetic resonant mode below Tc, 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. (c) 2005 Elsevier B.V. All rights reserved.
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