ANALYSIS OF NMR DATA IN THE SUPERCONDUCTING STATE OF YBA2CU3O7

被引：167

作者：

BULUT, N ^{[1
]}

SCALAPINO, DJ ^{[1
]}

机构：

[1] SAN DIEGO SUPERCOMP CTR,SAN DIEGO,CA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.68.706

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have extended a weak-coupling theory of antiferromagnetic fluctuations to the superconducting state and analyzed NMR data for YBa2Cu3O7. Within this framework we find that while an s-wave gap structure with 2-DELTA(0)/kT(c) = 4 can fit the Knight-shift data for Cu(2) and O(2,3), it does not provide a satisfactory fit to the T1(-1) data. Using a d(x2-y2)-wave gap with 2-DELTA(0)/kT(c) of order 6 to 8 provides a reasonable fit to both the Knight-shift and T1(-1) data.

引用

页码：706 / 709

页数：4

共 16 条

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