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

被引：0
|
作者：
Nikolaev, K. O. [1 ]
Lake, S. R. [2 ]
Das Mohapatra, B. [2 ]
Schmidt, G. [2 ,3 ]
Demokritov, S. O. [1 ]
Demidov, V. E. [1 ]
机构：
[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany
[2] Martin Luther Univ Halle Wittenberg, Inst Phys, D-06120 Halle, Germany
[3] Martin Luther Univ Halle Wittenberg, Interdisziplinares Zentrum Mat Wissensch, D-06120 Halle, Germany
来源：
APPLIED PHYSICS LETTERS | 2025年 / 126卷 / 08期
关键词：
D O I：
10.1063/5.0253293
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We experimentally study the 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.
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页数：6
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