SYMMETRY OF THE SUPERCONDUCTING ORDER-PARAMETER IN BI2SR2CACU2OX

被引：50

作者：

KELLEY, RJ ^{[1
]}

MA, J ^{[1
]}

MARGARITONDO, G ^{[1
]}

ONELLION, M ^{[1
]}

机构：

[1] ECOLE POLYTECH FED LAUSANNE,INST PHYS APPL,CH-1007 LAUSANNE,SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.71.4051

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyzed the symmetry of the superconducting-phase condensate of Bi2Sr2CaCu2Ox with photoemission at high energy and angular resolution. The result unambiguously demonstrates that the photohole must include non-s-wave components. Under the hypothesis of a pure d-wave symmetry, this would be identified as d(xz) + d(yz). Our superconducting state data are, specifically, incompatible with pure d(x2-y2) symmetry. Mixed symmetries, however, cannot be excluded as long as they include a non-s-wave component. We specifically observe a change in the symmetry of electronic states between the normal state and the superconducting state.

引用

页码：4051 / 4054

页数：4

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