Polarization selection rules and superconducting gap anisotropy in Bi2Sr2CaCu2O8

被引：35

作者：

Norman, MR ^{[1
]}

Randeria, M ^{[1
]}

Ding, H ^{[1
]}

Campuzano, JC ^{[1
]}

Bellman, AF ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT PHYS,CHICAGO,IL 60607

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.52.15107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss polarization selection rules for angle-resolved photoemission spectroscopy in Bi2212. Using these we show that the hump in the superconducting gap observed in the X quadrant in our earlier work is not on the main CuO2 band, but rather on an umklapp band arising from the structural superlattice. The intrinsic gap Is most likely quite small over a range of +/- 10 degrees about the diagonal directions.

引用

收藏

页码：15107 / 15110

页数：4

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