Influence of the pseudogap on the superconductivity-induced phonon renormalization in high-Tc superconductors -: art. no. 132504

被引：3
|
作者：
Varlamov, S [1 ]
Seibold, G [1 ]
机构：
[1] Brandenburg Tech Univ Cottbus, Inst Phys, D-03013 Cottbus, Germany
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.65.132504
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate the influence of a d-density wave (DDW) gap on the superconductivity-induced renormalization of phonon frequency and linewidth. The results are discussed with respect to Raman and inelastic neutron scattering experiments. It turns out that the DDW gap can enhance the range of frequencies for q = 0 phonon softening depending on the underlying band structure. Moreover we show that an anisotropic "d-wave" pseudogap can also contribute to the q-dependent linewidth broadening of the 340 cm(-1) phonon in YBa2Cu3O7.
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页码：1 / 4
页数：4
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