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arXiv 2501.08873cond-mat.mes-hallphysics.app-ph
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YIG纳米波导中反向自旋波引起的谐振模式间二次谐波产生

Resonant inter-mode second harmonic generation by backward spin waves in YIG nano-waveguides

K. O. Nikolaev, S. R. Lake, B. Das Mohapatra, G. Schmidt, S. O. Demokritov, V. E. Demidov

AI总结:

本研究实验验证了在YIG纳米波导中,利用反向体自旋波可在低微波功率下实现高效谐振模式间二次谐波产生,且具有反向传播特性并可在零磁场下工作。

摘要:

我们实验研究了在厚度为几十纳米的低损耗磁性绝缘体制成的微观磁子波导中传播的反向体自旋波的非线性二次谐波产生。我们展示了在微波功率约为10^-4瓦特时,模式间谐振二次谐波产生可以实现高效率。与先前观察到的二次谐波产生过程相比,由反向波产生的二次谐波具有非线性产生的波沿与初始波相反方向传播的特点,并且可以在零偏置磁场下实现。

英文摘要:

We experimentally study nonlinear generation of the second harmonic by backward volume spin waves propagating in microscopic magnonic waveguides fabricated from a low-loss magnetic insulator with a thickness of several tens of nanometers. We show that highly efficient resonant second harmonic generation is possible in the inter-mode regime at microwave powers of the order of 10^-4 W. In contrast to previously observed second harmonic generation processes, the generation by backward waves is characterized by the nonlinearly generated waves propagating opposite to the initial waves, and can be realized at zero bias magnetic field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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