4.6 Article

Destruction of long-range order in noncollinear two-dimensional antiferromagnets by random-bond disorder

期刊

PHYSICAL REVIEW B
卷 101, 期 2, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.101.020411

关键词

-

资金

  1. Deutsche Forschungsgemeinschaft through SFB 1143 [247310070]
  2. Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat (EXC 2147) [390858490]
  3. CNPq (BR) [302065/2016-4]

向作者/读者索取更多资源

We consider frustrated Heisenberg antiferromagnets, whose clean-limit ground state is characterized by noncollinear long-range order with nonzero vector chirality, and study the effects of quenched bond disorder, i.e., random exchange couplings. A single bond defect is known to induce a dipolar texture in the spin background independent of microscopic details. Using general analytical arguments as well as large-scale simulations for the classical triangular-lattice Heisenberg model, we show that any finite concentration of such defects destroys long-range order for spatial dimension d <= 2, in favor of a glassy state whose correlation length in d = 2 is exponentially large for small randomness. Our results are relevant for a wide range of layered frustrated magnets.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据