...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Electron spin resonance in a dilute magnon gas as a probe of magnon scattering resonances
【24h】

Electron spin resonance in a dilute magnon gas as a probe of magnon scattering resonances

机译：稀磁子气中的电子自旋共振作为磁子散射共振的探针

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

We study the electron spin resonance in a dilute magnon gas that is realized in a ferromagnetic spin system at low temperature. A quantum cluster expansion is developed to show that the frequency shift of the single-magnon peak changes its sign and the linewidth reaches its maximum across a scattering resonance between magnons. Such characteristic behaviors are universal and can be used to experimentally locate the two-magnon resonance when an external parameter such as pressure is varied. Future achievement of the two-magnon resonance may have an impact comparable to the Feshbach resonance in ultracold atoms and will open up a rich variety of strongly correlated physics such as the recently proposed Efimov effect in quantum magnets. We also suggest how the emergence of an Efimov state of three magnons and its binding energy may be observed with the electron spin resonance.
机译：我们研究了在稀铁磁气体中的电子自旋共振，这是在低温下在铁磁自旋系统中实现的。量子簇展开表明，单磁子峰的频移改变了它的正负号，线宽在磁子之间的散射共振中达到了最大。这样的特征行为是普遍的，并且当诸如压力之类的外部参数变化时，可用于实验性地定位双磁振子共振。两磁子共振的未来成就可能会产生与超冷原子中的Feshbach共振相当的影响，并且将打开各种强相关的物理学，例如最近提出的量子磁体中的Efimov效应。我们还建议如何通过电子自旋共振观察到三个磁振子的Efimov态及其结合能的出现。

著录项

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