Charge-density-wave origin of the dip-hump structure in tunnel spectra of the BSCCO superconductor

被引：37
作者：
Gabovich, Alexander M. [1 ]
Voitenko, Alexander I. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Phys, UA-03680 Kiev, Ukraine
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.75.064516
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Differential conductance G as the function of the bias voltage V across the tunnel junction between a normal metal and an inhomogeneous superconductor with charge density waves (CDW's) has been calculated by spatial averaging over random domains with varying superconducting- and normal-state properties. For these materials, irregularly distorted CDW patterns with spatially scattered values of various parameters were earlier shown to manifest themselves in a great body of experimental data. The results of the calculations were applied to explain the well-known dip-hump structure in the G(V) dependence for Bi(2)Sr(2)CaCu(2)O(8+delta) and other high-T(c) cuprates.
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页数：13
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