...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Topological phase diagrams of the frustrated Ising ferromagnet
【24h】

Topological phase diagrams of the frustrated Ising ferromagnet

机译：令人沮丧的诸如铁磁体的拓扑相图

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The emergence of complex modulated structures in the magnetization pattern of thin films is a well-established experimental phenomenology caused by the frustrating effects of competing interactions. Using a coarse-grained version of the Ising ferromagnet with dipolar interactions, we develop a method that uses the information from the microscopic Hamiltonian to predict the specific topological phases present in the temperature-external magnetic field phase diagram. This is done by the combination of mean-field variational calculations and the renormalization group equations from the classical theory of two-dimensional melting. In this framework, we are able to distinguish when the orientational and translational symmetries are broken, discriminating between the ordered and disordered states of the system for all temperatures and fields. We observe that the reentrance developed by the H-T phase diagrams in the regime of weak dipolar interactions is directly related with the appearance of anomalous topological transitions. These results motivate the realization of new experiments on magnetic thin films in order to explore the topological properties of the magnetic textures, allowing to identify new exotic phases in these materials.
机译：薄膜磁化模式中复杂调制结构的出现是由竞争相互作用的令人沮丧的影响引起的良好的实验现象。使用具有Dipolar交互的粗粒版本的Ising Ferromagnet，我们开发一种方法，该方法使用来自微观汉密尔顿的信息来预测温度外部磁场相图中存在的特定拓扑相。这是通过平均场分层计算的组合与二维熔化的经典理论的转义分析计算和重修化组方程的组合来完成的。在该框架中，我们能够区分当取向和翻译对称被破坏，区分系统的有序和无序状态的所有温度和田地。我们观察到，在弱偶极相互作用的制度中，H-T相图开发的重抵抗与异常拓扑过渡的外观直接相关。这些结果激发了对磁性薄膜的新实验的实现，以探讨磁性纹理的拓扑特性，从而允许识别这些材料中的新的异种阶段。

著录项

  • 来源
    《Physical review》 |2020年第17期|174438.1-174438.11|共11页
  • 作者

    Alejandro Mendoza-Coto; Danilo Emanuel Barreto de Oliveira; Lucas Nicolao; Rogelio Diaz-Mendez;

  • 作者单位

    Departamento de Fisica Universidade Federal de Santa Catarina 88040-900 Florianopolis Brazil;

    Departamento de Fisica Universidade Federal de Rio Grande do Sul 91501 -970 Porto Alegre Brazil;

    Departamento de Fisica Universidade Federal de Santa Catarina 88040-900 Florianopolis Brazil;

    Department of Physics KTH Royal Institute of Technology SF-10691 Stockholm Sweden;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 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