Density of states in high-Tc superconductor vortices -: art. no. 277002

被引：21

作者：

Berthod, C ^{[1
]}

Giovannini, B ^{[1
]}

机构：

[1] Univ Geneva, DPMC, CH-1211 Geneva 4, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 27期

关键词：

D O I：

10.1103/PhysRevLett.87.277002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculated the electronic structure of a vortex in a pseudogapped superconductor within a model featuring strong correlations. With increasing strength of the correlations, the BCS core states are suppressed and the spectra inside and outside the core become similar. If the correlations are short range, we find new core states in agreement with the observations in YBa2Cu3O7-delta and Bi2Sr2CaCu2O8+delta. Our results point to a common phenomenology for these two systems and indicate that normal-state correlations survive below T-c without taking part in the overall phase coherence.

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页码：277002 / 277002

页数：4

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