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Enhancement of spintronic terahertz emission enabled by increasing Hall angle and interfacial skew scattering - Communications Physics

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Enhancement of spintronic terahertz emission enabled by increasing Hall angle and interfacial skew scattering - Communications Physics

Spintronic terahertz (THz) emitters (STEs) based on magnetic heterostructures have emerged as promising THz sources. However, it is still a challenge to achieve a higher intensity STE to satisfy all kinds of practical applications. Herein, we report a STE based on Pt0.93(MgO)0.07/CoFeB nanofilm by introducing dispersed MgO impurities into Pt, which reaches a 200% intensity compared to Pt/CoFeB and approaches the signal of 500 μm ZnTe crystal under the same pump power.

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Enhancement of spintronic terahertz emission enabled by increasing Hall angle and interfacial skew scattering - Communications Physics

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Enhancement of spintronic terahertz emission enabled by increasing Hall angle and interfacial skew scattering - Communications Physics

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