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dc.contributor.authorLi, Cheng
dc.contributor.authorFang, Bin
dc.contributor.authorZhang, Like
dc.contributor.authorChen, Qian
dc.contributor.authorXie, Xiangnan
dc.contributor.authorXu, Nuo
dc.contributor.authorZeng, Zhongming
dc.contributor.authorWang, Zhenyu
dc.contributor.authorFang, Liang
dc.contributor.authorJiang, Tian
dc.date.accessioned2021-09-08T06:04:57Z
dc.date.available2021-09-08T06:04:57Z
dc.date.issued2021-08-30
dc.date.submitted2020-11-26
dc.identifier.citationLi, C., Fang, B., Zhang, L., Chen, Q., Xie, X., Xu, N., … Jiang, T. (2021). Terahertz Generation via Picosecond Spin-to-Charge Conversion in IrMn3/Ni−Fe Heterojunction. Physical Review Applied, 16(2). doi:10.1103/physrevapplied.16.024058
dc.identifier.issn2331-7019
dc.identifier.doi10.1103/PhysRevApplied.16.024058
dc.identifier.urihttp://hdl.handle.net/10754/671098
dc.description.abstractExperimental investigations of ultrafast electro-optical properties in magnetic materials manifest their great potential for emerging spintronic optoelectronic devices. Here, using time-resolved terahertz emission spectroscopy, we construct a spintronic terahertz emitter consisting of an IrMn 3/Ni−Fe heterojunction. A femtosecond spin current pulse is generated in the thin film of the Ni−Fe layer when it absorbs a femtosecond laser pulse, and then the spin current is converted into a transient charge current by the metallic IrMn 3 layer on picosecond timescales. We timely record the terahertz emission associated with this ultrafast conversion process by means of electro-optic sampling. Besides, the spin-to-charge conversion efficiency of the IrMn3/Ni−Fe heterojunction is determined via quantitative analysis of the spin torque ferromagnetic resonance results. We have both optically verified and electrically studied the spin-to-charge conversion of the IrMn3/Ni−Fe heterojunction. Our results enlarge the material choice range of spintronic terahertz emitters, which may promote further investigations of ultrafast spin-to-charge conversion in different heterojunction materials
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttps://link.aps.org/doi/10.1103/PhysRevApplied.16.024058
dc.rightsArchived with thanks to PHYSICAL REVIEW APPLIED
dc.titleTerahertz Generation via Picosecond Spin-to-Charge Conversion in IrMn3/Ni-Fe Heterojunction
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalPHYSICAL REVIEW APPLIED
dc.identifier.wosutWOS:000691406500005
dc.eprint.versionPost-print
dc.identifier.volume16
dc.identifier.issue2
kaust.personFang, Bin
dc.date.accepted2021-08-12
refterms.dateFOA2021-09-08T12:50:27Z


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