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dc.contributor.authorLi, Feng
dc.contributor.authorDing, Junfeng
dc.contributor.authorYu, Weili
dc.contributor.authorGuan, Xinwei
dc.contributor.authorWang, Peng
dc.contributor.authorWu, Di
dc.contributor.authorWu, Tao
dc.date.accessioned2020-01-13T13:02:49Z
dc.date.available2020-01-13T13:02:49Z
dc.date.issued2019-12-20
dc.identifier.citationLi, F., Ding, J., Yu, W., Guan, X., Wang, P., Wu, D., & Wu, T. (2020). Light-Enhanced Spin Diffusion in Hybrid Perovskite Thin Films and Single Crystals. ACS Applied Materials & Interfaces. doi:10.1021/acsami.9b18562
dc.identifier.doi10.1021/acsami.9b18562
dc.identifier.urihttp://hdl.handle.net/10754/661005
dc.description.abstractOrganolead 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 μm 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.
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsami.9b18562
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS applied materials & interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsami.9b18562.
dc.titleLight-Enhanced Spin Diffusion in Hybrid Perovskite Thin Films and Single Crystals.
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS applied materials & interfaces
dc.rights.embargodate2020-12-21
dc.eprint.versionPost-print
dc.contributor.institutionChangchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences (CAS) , Changchun 130033 , People's Republic of China.
dc.contributor.institutionSchool of Materials Science and Engineering , University of New South Wales (UNSW) , Sydney , New South Wales 2052 , Australia.
dc.contributor.institutionNational Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , 22 Hankou Road , Nanjing 210093 , People's Republic of China.
kaust.personLi, Feng
kaust.personDing, Junfeng
dc.date.published-online2019-12-20
dc.date.published-print2020-01-15


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