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Light-Enhanced Spin Diffusion in Hybrid Perovskite Thin Films and Single Crystals
F. Li,J. F. Ding,W. L. Yu,X. W. Guan,P. Wang,D. Wu and T. Wu
2020
发表期刊Acs Applied Materials & Interfaces
ISSN1944-8244
卷号12期号:2页码:3205-3213
摘要Organolead trihalide perovskites have attracted substantial interest with regard to applications in charge-based photovoltaic and optoelectronic devices because of their low processing costs and remarkable light absorption and charge transport properties. Although spin is an intrinsic quantum descriptor of a particle and spintronics has been a central research theme in condensed matter physics, few studies have explored the spin degree of freedom in the emerging hybrid perovskites. Here, we report the characterization of a spin valve that uses hybrid perovskite films as the spin-transporting medium between two ferromagnetic electrodes. Because of the light-responsive nature of the hybrid perovskite, a high magnetoresistance of 97% and a large spin-diffusion length of 81 nm were achieved at 10 K under light illumination in polycrystalline films. Furthermore, by using thin perovskite single crystals, we discovered that the spin-diffusion length was able to reach 1 mu m at low temperatures. Our results indicate that the spin relaxation is not significant as previously expected in such lead-containing materials and demonstrate the potential of low-temperature-processed hybrid perovskites as new active materials in spintronic devices.
DOI10.1021/acsami.9b18562
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/64649
专题中国科学院长春光学精密机械与物理研究所
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F. Li,J. F. Ding,W. L. Yu,X. W. Guan,P. Wang,D. Wu and T. Wu. Light-Enhanced Spin Diffusion in Hybrid Perovskite Thin Films and Single Crystals[J]. Acs Applied Materials & Interfaces,2020,12(2):3205-3213.
APA F. Li,J. F. Ding,W. L. Yu,X. W. Guan,P. Wang,D. Wu and T. Wu.(2020).Light-Enhanced Spin Diffusion in Hybrid Perovskite Thin Films and Single Crystals.Acs Applied Materials & Interfaces,12(2),3205-3213.
MLA F. Li,J. F. Ding,W. L. Yu,X. W. Guan,P. Wang,D. Wu and T. Wu."Light-Enhanced Spin Diffusion in Hybrid Perovskite Thin Films and Single Crystals".Acs Applied Materials & Interfaces 12.2(2020):3205-3213.
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