Intrinsic tunneling in high-Tc Bi2212 crystals supports a coexistence of superconducting and pseudo-gaps

被引：7

作者：

Krasnov, VM ^{[1
]}

Yurgens, A

Winkler, D

Delsing, P

Claeson, T

机构：

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

[2] Univ Gothenburg, SE-41296 Gothenburg, Sweden

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

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

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

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2001年 / 352卷 / 1-4期

关键词：

pseudo-gap; Josephson effect; Bi2212; crystal;

D O I：

10.1016/S0921-4534(00)01700-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

From intrinsic tunneling spectroscopy, superconducting- and pseudo-gaps could be separated within a wide range of temperatures. We have found that the two gaps have different temperature (T) and magnetic field (H) dependencies. The superconducting gap closes both as T --> T-v and H --> H-c2 while the pseudo-gap does not change neither with T, or H. This would speak ill favor of two coexisting phenomena and against the precursor superconductivity scenario of the pseudo-gap. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：89 / 94

页数：6

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