Is the pi particle responsible for the 41 meV peak in YBa2Cu3O7?

被引：26

作者：

Greiter, M

机构：

[1] Department of Physics, Stanford University, Stanford, CA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.79.4898

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is argued that there is no low-energy resonance associated with the pi operators introduced by Demler and Zhang. This implies that the Hubbard model does not possess an approximate SO(5) symmetry generated by these operators. Recent finite-size studies are reinterpreted accordingly.

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页码：4898 / 4901

页数：4

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