Sunlight Control of Interfacial Magnetism for Solar Driven Spintronic Applications.

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ID: 156668
2019
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Ranked #16 of 57 articles by views in Advanced science (Weinheim, Baden-Wurttemberg, Germany)

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Abstract
The inexorable trend of next generation spintronics is to develop smaller, lighter, faster, and more energy efficient devices. Ultimately, spintronics driven by free energy, for example, solar power, is imperative. Here, a prototype photovoltaic spintronic device with an optical-magneto-electric tricoupled photovoltaic/magnetic thin film heterojunction, where magnetism can be manipulated directly by sunlight via interfacial effect, is proposed. The magnetic anisotropy is reduced evidenced by the out-of-plane ferromagnetic resonance (FMR) field change of 640.26 Oe under 150 mW cm illumination via in situ electron spin resonance (ESR) method. The transient absorption analysis and the first-principles calculation reveal that the photovoltaic electrons doping in the cobalt film alter the band filling of this ferromagnetic film. The findings provide a new path of electron doping control magnetism and demonstrate an optical-magnetic dual controllable logical switch with limited energy supply, which may further transform the landscape of spintronics research.
Reference Key
zhao2019sunlightadvanced Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhao, Yifan;Zhao, Shishun;Wang, Lei;Zhou, Ziyao;Liu, Junxue;Min, Tai;Peng, Bin;Hu, Zhongqiang;Jin, Shengye;Liu, Ming;
Journal Advanced science (Weinheim, Baden-Wurttemberg, Germany)
Year 2019
DOI
10.1002/advs.201901994
URL
Keywords
low power solar cells magnetoelectric coupling organics ferromagnetic resonance

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