UNIVERSAL QUANTUM-CRITICAL DYNAMICS OF 2-DIMENSIONAL ANTIFERROMAGNETS

被引：226

作者：

SACHDEV, S ^{[1
]}

YE, JW ^{[1
]}

机构：

[1] YALE UNIV,CTR THEORET PHYS,NEW HAVEN,CT 06511

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.69.2411

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The universal dynamic and static properties of two-dimensional antiferromagnets in the vicinity of a zero-temperature phase transition from long-range magnetic order to a quantum-disordered phase are studied. Random antiferromagnets with both Neel and spin-glass long-range magnetic order are considered. Explict quantum-critical dynamic scaling functions are computed in a 1/N expansion to two-loop level for certain nonrandom, frustrated square-lattice antiferromagnets. Implications for neutron scattering experiments on the doped cuprates are noted.

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页码：2411 / 2414

页数：4

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