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Thermally induced monochromatic microwave generation in magnon polaritons

机译:磁振子中热诱导单色微波的产生

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摘要

We propose thermally induced generation of monochromatic microwave radiation in magnon-polaritons. The mechanism of thermal to microwave energy transformation is based on intrinsic energy loss compensation of coupled magnon and microwave cavity oscillators by thermally induced "negative damping." A singularity at an exceptional point is achieved when at the critical value of negative damping, the damping of the system is fully compensated. At the exceptional point, the input energy is equally distributed between the magnon and photon subsystems of the magnon-polariton. The efficiency of transformation of thermal energy into useful microwave radiation is estimated to be as large as 17% due to magnon-photon coupling mediated direct conversion of spin current into microwave photons.
机译:我们提出在磁非极化子中热诱导产生单色微波辐射。热到微波能量转换的机制基于通过热感应的“负阻尼”耦合的磁振子和微波腔振荡器的固有能量损耗补偿。当在负阻尼的临界值时,在一个特殊的点会达到奇点。系统的阻尼得到充分补偿。在特殊情况下,输入能量在磁振子极化子的磁子子系统和光子子系统之间平均分配。由于磁光子耦合介导的自旋电流直接转换为微波光子,热能转换为有用的微波辐射的效率估计高达17%。

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  • 来源
    《Physical review》 |2019年第22期|224408.1-224408.8|共8页
  • 作者

    Grigoryan Vahram L.; Xia Ke;

  • 作者单位

    Southern Univ Sci & Technol, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China;

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  • 正文语种 eng
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