...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Npj Quantum Materials >Classical magnetic vortex liquid and large thermal Hall conductivity in frustrated magnets with bond-dependent interactions
【24h】

Classical magnetic vortex liquid and large thermal Hall conductivity in frustrated magnets with bond-dependent interactions

机译：具有粘合依赖性相互作用的令人沮丧的磁体的古典磁涡液和大型热霍尔电导率

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recently, the observation of large thermal Hall conductivities in correlated insulators with no apparent broken symmetry has generated immense interest and debates on the underlying ground states. Here, considering frustrated magnets with bond-dependent interactions, which are realized in the so-called Kitaev materials, we theoretically demonstrate that a large thermal Hall conductivity can originate from a classical ground state without any magnetic order. We discover a liquid state of magnetic vortices, which are inhomogeneous spin textures embedded in the background of polarized spins, under out-of-plane magnetic fields. In the classical regime, different configurations of vortices form an effectively degenerate manifold. We study the static and dynamical properties of the magnetic vortex liquid state at zero and finite temperatures. In particular, we show that the spin excitation spectrum resembles a continuum of nearly flat Chern bands, which ultimately leads to a large thermal Hall conductivity. Possible connections to experiments are discussed.
机译：最近，在没有明显破裂对称的相关绝缘体中的大型热霍尔电导率的观察产生了巨大的兴趣和对基础国家的争论。这里，考虑到具有结合依赖性相互作用的沮丧的磁体，其在所谓的kitaev材料中实现，理论上证明了大的热霍尔电导率可以从没有任何磁秩序的经典地面。我们发现磁性涡旋的液态，其在偏振旋转在偏振旋转背景下的不均匀旋转纹理，在平面外磁场。在经典制度中，不同的涡流配置形成了有效的剥夺歧管。我们在零和有限温度下研究磁性涡流液态的静态和动态性质。特别地，我们表明旋转激励光谱类似于几乎扁平的挖掘带的连续体，最终导致大的热霍尔电导率。讨论了与实验的可能连接。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号