The pseudogap phenomenon in high-Tc superconductors

被引：0

作者：

Ranninger, J

Romano, A

机构：

[1] Univ Grenoble 1, CNRS, Ctr Rech Tres Basses Temp Lab, F-38042 Grenoble 9, France

[2] Univ Salerno, Dipartimento Sci Fis ER Caianiello, INFM, Unita Salerno, I-84081 Baronissi, Italy

来源：

ACTA PHYSICA POLONICA A | 2000年 / 97卷 / 01期

关键词：

D O I：

10.12693/APhysPolA.97.157

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We review the possible mechanisms leading up to the phenomenon of a pseudogap which characterizes the normal-state properties of high-T-c superconductors. We suggest that this pseudogap is not due to superconducting phase fluctuations and hence is not related to a crossover between a BCS state of Cooper pairs and a Bose-Einstein condensation of local pairs. We rather argue that it is due to uncorrelated pairing which is already manifest in the local electronic structure and accessible by photoemission and tunneling experiments.

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页码：157 / 164

页数：8

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