Effects of spin fluctuations on the tunneling spectroscopy in high-Tc superconductors -: art. no. 172503

被引：10

作者：

Wu, CL ^{[1
]}

Mou, CY

Chang, D

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30043, Taiwan

[2] Natl Ctr Theoret Sci, Hsinchu, Taiwan

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.63.172503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the effects of spin fluctuations on the tunneling spectra of the normal-metal-superconductor junction. In the high junction resistance limit, the dip/hump structure observed in ARPES data for the high T-c. superconductors is reproduced in a random-phase approximation treatment of the t-t'-J model. It is shown that the dip/hump structure weakens as doping increases as reflected in the data. In the other limit, we predict that the zero bias Andreev peak can coexist with the dip/hump structure. Furthermore, the c-axis tunneling spectra is found to be very similar to recent scanning runner microscope data once these fluctuations are included.

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页数：4

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