Evidence for coexistence of the superconducting gap and the pseudogap in Bi-2212 from intrinsic tunneling spectroscopy

被引：300

作者：

Krasnov, VM ^{[1
]}

Yurgens, A

Winkler, D

Delsing, P

Claeson, T

机构：

[1] Chalmers, Dept Microelect & Nanosci, S-41296 Gothenburg, Sweden

[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia

[3] PL Kapitza Phys Problems Inst, Moscow 117334, Russia

[4] IMEGO Inst, S-41133 Gothenburg, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.84.5860

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

present intrinsic tunneling spectroscopy measurements on small Bi2Sr2CaCu2O8+x,, mesas. The tunnel conductance curves show both sharp peaks at the superconducting gap voltage and broad humps representing the c-axis pseudogap, The superconducting gap vanishes at T-c, while the pseudogap exists both above and below T-c. Our observation implies that the superconducting and pseudogaps represent different coexisting phenomena.

引用

页码：5860 / 5863

页数：4

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