铁磁薄膜磁化的超快全光操纵

International Workshop on Thin Films for Electronics, Electro-Optics, Energy and Sensors Pub Date : 2023-01-31 DOI:10.1117/12.2647640

Yongmin Liu

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引用次数: 0

摘要

我们报道了在铁磁Co/Pt薄膜上的超快全光磁化操作，该薄膜被金覆盖层或金纳米颗粒覆盖。在第一种结构中，我们观察到在不同条件下全光磁化强度的鲁棒螺旋相关开关。在第二种结构中，金纳米粒子的强等离子体共振导致操纵磁化所需的最小激光功率降低了18.5%。

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Ultrafast all-optical manipulation of magnetization in ferromagnetic thin films

We report ultrafast all-optical manipulation of magnetization in ferromagnetic Co/Pt thin films, which are covered by an Au capping layer or Au nanoparticles. In the first configuration, we observe robust all-optical helicity-dependent switching of magnetization under different conditions. In the second configuration, the strong plasmonic resonance of Au nanoparticles results in an 18.5% decrease in the minimum laser power required to manipulate the magnetization.

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International Workshop on Thin Films for Electronics, Electro-Optics, Energy and Sensors

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