Analysis of the pseudogap-related structure in tunneling spectra of superconducting Bi2Sr2CaCu2O8+δ revealed by the break-junction technique

被引：23

作者：

Ekino, T. ^{[1
]}

Gabovich, A. M.

Li, Mai Suan

Pekala, M.

Szymczak, H.

Voitenko, A. I.

机构：

[1] Hiroshima Univ, Fac Integrated Arts & Sci, Higashihiroshima 7398521, Japan

[2] Inst Phys, UA-03680 Kiev, Ukraine

[3] Inst Phys, PL-02668 Warsaw, Poland

[4] Univ Warsaw, Dept Chem, PL-02089 Warsaw, Poland

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.76.180503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tunnel conductance G(V) for break junctions made of single-crystal as-grown Bi(2)Sr(2)CaCu(2)O(8+delta) samples with T(c)approximate to 86-89 K were measured and clear-cut dip-hump structures (DHSs) were found in the range 80-120 mV of the bias voltage V. A theory of tunneling in symmetrical junctions between inhomogeneous charge-density-wave (CDW) superconductors, considered in the framework of the s-pairing model, has been developed. CDWs have been shown to be responsible for the appearance of the DHS in the tunnel current-voltage characteristics and properly describe the experimental results.

引用

页数：4

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