Analysis of the resonance peak and magnetic coherence seen in inelastic neutron scattering of cuprate superconductors: A consistent picture with tunneling and conductivity data

被引:66
作者
Manske, D
Eremin, I
Bennemann, KH
机构
[1] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany
[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
来源
PHYSICAL REVIEW B | 2001年 / 63卷 / 05期
关键词
D O I
10.1103/PhysRevB.63.054517
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Assuming the exchange of antiferromagnetic spin fluctuations as the Cooper pairing mechanism we calculate the doping dependence of the resonance peak seen in inelastic neutron scattering and the magnetic coherence effect. Most importantly, we find that the resonance peak in the magnetic susceptibility, Im chi (q,omega), appears only in the superconducting state, that it scales with T-c, and that magnetic coherence is a result of a d-wave order parameter. We further analyze the structure of Im chi below T-c, the position of the peak at omega (res) and the consequences for photoemission, tunneling spectroscopy, and the optical conductivity.
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页数:4
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