Pseudogap effects induced by resonant pair scattering

被引：168

作者：

Janko, B

Maly, J

Levin, K

机构：

[1] The James Franck Institute, The University of Chicago, South Ellis Avenue

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.56.R11407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate how resonant pair scattering of correlated electrons above T-c can give rise to pseudogap behavior. This resonance in the scattering T matrix appears for superconducting interactions of intermediate strength, within the framework of a simple fermionic model. It is associated with a splitting of the single peak in the spectral function into a pair of peaks separated by an energy gap. Our physical picture is contrasted with that derived from other T-matrix schemes, with superconducting fluctuation effects, and with preformed pair (boson-fermion) models. Implications for photoemission and tunneling experiments in the cuprates are discussed. [S0163-1829(97)50742-9].

引用

页码：11407 / 11410

页数：4

共 34 条

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